/* ==========================================================================
   KNORPEL-AUFBAU.INFO - Master Bio-Tech Editorial Design System
   Color Scheme: Dark Purple / Neon / Parallax / Digital Anatomy
   ========================================================================== */

:root {
  /* Core Color Palette */
  --bg-dark: #09050F;
  --bg-secondary: #120A20;
  --bg-card: rgba(18, 10, 32, 0.75);
  --bg-card-hover: rgba(27, 13, 46, 0.85);
  --deep-purple: #1B0D2E;
  --violet-primary: #6D28D9;
  --neon-violet: #9B5CFF;
  --neon-magenta: #E84DFF;
  --electric-blue: #4FD8FF;
  --cyan-accent: #00F5FF;
  --text-main: #F5F1FF;
  --text-muted: #A89DBA;
  --text-dim: #736987;
  --border-subtle: rgba(109, 40, 217, 0.25);
  --border-neon: rgba(155, 92, 255, 0.45);
  --border-active: rgba(232, 77, 255, 0.7);

  /* Glassmorphism & Glows */
  --glass-bg: rgba(18, 10, 32, 0.65);
  --glass-blur: blur(16px);
  --glow-violet: 0 0 25px rgba(155, 92, 255, 0.35);
  --glow-magenta: 0 0 25px rgba(232, 77, 255, 0.35);
  --glow-blue: 0 0 25px rgba(79, 216, 255, 0.35);

  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;

  /* Layout */
  --container-max: 1280px;
  --container-narrow: 860px;
  --header-height: 76px;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  --transition-smooth: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Base Reset & Box Sizing */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  background-color: var(--bg-dark);
  color: var(--text-main);
  scroll-behavior: smooth;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background-color: var(--bg-dark);
  color: var(--text-main);
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}

/* Background Atmosphere Grid & Light Orbs */
.bg-ambient {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.ambient-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.18;
  will-change: transform;
}

.ambient-orb-1 {
  width: 650px;
  height: 650px;
  top: -150px;
  left: 15%;
  background: radial-gradient(circle, var(--neon-violet) 0%, transparent 70%);
}

.ambient-orb-2 {
  width: 800px;
  height: 800px;
  top: 40%;
  right: -200px;
  background: radial-gradient(circle, var(--neon-magenta) 0%, transparent 70%);
}

.ambient-orb-3 {
  width: 600px;
  height: 600px;
  bottom: 5%;
  left: -100px;
  background: radial-gradient(circle, var(--electric-blue) 0%, transparent 70%);
}

.ambient-grid {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(to right, rgba(109, 40, 217, 0.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(109, 40, 217, 0.04) 1px, transparent 1px);
  background-size: 64px 64px;
}

/* Typography Hierarchy */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-main);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2.4rem, 5vw, 4.2rem);
  text-transform: uppercase;
  letter-spacing: -0.03em;
}

h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.75rem);
  letter-spacing: -0.025em;
  margin-bottom: 1.25rem;
}

h3 {
  font-size: clamp(1.3rem, 2.2vw, 1.8rem);
  margin-bottom: 0.75rem;
}

p {
  color: var(--text-muted);
  font-size: 1.05rem;
  line-height: 1.7;
  margin-bottom: 1.25rem;
}

p.lead {
  font-size: 1.25rem;
  color: var(--text-main);
  line-height: 1.6;
}

a {
  color: var(--neon-violet);
  text-decoration: none;
  transition: var(--transition-smooth);
}

a:hover {
  color: var(--neon-magenta);
}

/* Scientific Badges & Index Numbers */
.tech-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--neon-violet);
  background: rgba(155, 92, 255, 0.08);
  border: 1px solid var(--border-neon);
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  margin-bottom: 1.25rem;
  box-shadow: 0 0 15px rgba(155, 92, 255, 0.15);
}

.tech-badge::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--electric-blue);
  box-shadow: 0 0 8px var(--electric-blue);
}

.index-label {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--neon-magenta);
  letter-spacing: 0.15em;
  display: block;
  margin-bottom: 0.5rem;
}

/* Layout Containers */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
  position: relative;
  z-index: 1;
}

.container-narrow {
  max-width: var(--container-narrow);
}

section {
  padding: 6.5rem 0;
  position: relative;
  z-index: 1;
}

/* Header & Navigation */
header.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  z-index: 100;
  transition: var(--transition-smooth);
  border-bottom: 1px solid rgba(109, 40, 217, 0.15);
  background: rgba(9, 5, 15, 0.75);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

header.site-header.scrolled {
  background: rgba(14, 8, 24, 0.92);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--border-neon);
  box-shadow: 0 4px 30px rgba(9, 5, 15, 0.8), 0 0 15px rgba(109, 40, 217, 0.2);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 1.5rem;
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 800;
  font-size: 1.05rem;
  letter-spacing: 0.08em;
  color: var(--text-main);
  text-transform: uppercase;
  flex-shrink: 0;
  white-space: nowrap;
}

.brand-logo svg {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
}

.brand-logo span.highlight {
  color: var(--neon-magenta);
  font-weight: 400;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.35rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-link {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.03em;
  position: relative;
  padding: 0.4rem 0;
  white-space: nowrap;
}

.nav-link:hover,
.nav-link.active {
  color: var(--text-main);
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background: linear-gradient(90deg, var(--neon-violet), var(--neon-magenta));
  transition: width 0.25s ease;
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  flex-shrink: 0;
}

/* Button UI Components */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.75rem 1.75rem;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition-smooth);
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--violet-primary) 0%, var(--neon-violet) 100%);
  color: #FFFFFF;
  box-shadow: 0 4px 20px rgba(109, 40, 217, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--neon-violet) 0%, var(--neon-magenta) 100%);
  box-shadow: 0 0 25px rgba(232, 77, 255, 0.5);
  transform: translateY(-2px);
  color: #FFFFFF;
}

.btn-secondary {
  background: rgba(27, 13, 46, 0.6);
  color: var(--text-main);
  border: 1px solid var(--border-neon);
  backdrop-filter: blur(8px);
}

.btn-secondary:hover {
  background: rgba(155, 92, 255, 0.15);
  border-color: var(--neon-violet);
  color: #FFFFFF;
  transform: translateY(-2px);
}

.btn-sm {
  padding: 0.45rem 1.1rem;
  font-size: 0.85rem;
}

/* Mobile Hamburger Menu */
.mobile-toggle {
  display: none;
  background: rgba(27, 13, 46, 0.6);
  border: 1px solid var(--border-neon);
  border-radius: var(--radius-sm);
  padding: 0.45rem;
  color: var(--text-main);
  cursor: pointer;
  z-index: 101;
  transition: var(--transition-smooth);
}

.mobile-toggle:hover {
  background: rgba(155, 92, 255, 0.2);
  border-color: var(--neon-magenta);
}

.mobile-toggle svg {
  width: 22px;
  height: 22px;
  display: block;
}

.mobile-menu-drawer {
  position: fixed;
  top: 0;
  right: -100%;
  width: 100%;
  max-width: 340px;
  height: 100vh;
  background: #0B0614;
  border-left: 1px solid var(--border-neon);
  box-shadow: -15px 0 50px rgba(0, 0, 0, 0.85);
  padding: calc(var(--header-height) + 1.5rem) 2rem 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.15rem;
  transition: right 0.32s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 99;
  overflow-y: auto;
}

.mobile-menu-drawer.open {
  right: 0;
}

.mobile-menu-drawer .nav-link {
  font-size: 1.1rem;
  padding: 0.65rem 0;
  border-bottom: 1px solid rgba(109, 40, 217, 0.2);
  color: var(--text-main);
}

/* Hero Section with Parallax Layers */
.hero-section {
  min-height: 92vh;
  padding-top: calc(var(--header-height) + 4rem);
  padding-bottom: 5rem;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: 3.5rem;
}

.hero-content {
  position: relative;
  z-index: 2;
}

.hero-title {
  margin-bottom: 1.5rem;
  line-height: 1.08;
}

.hero-title .title-accent {
  background: linear-gradient(135deg, #FFFFFF 20%, var(--neon-violet) 70%, var(--electric-blue) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: block;
}

.hero-subtitle {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--neon-magenta);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
  display: block;
}

.hero-desc {
  font-size: 1.25rem;
  color: var(--text-muted);
  margin-bottom: 2.25rem;
  max-width: 580px;
  border-left: 3px solid var(--neon-violet);
  padding-left: 1.25rem;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
  margin-bottom: 3rem;
}

.hero-meta {
  display: flex;
  align-items: center;
  gap: 2.5rem;
  border-top: 1px solid var(--border-subtle);
  padding-top: 1.75rem;
}

.meta-item {
  display: flex;
  flex-direction: column;
}

.meta-val {
  font-family: var(--font-mono);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text-main);
}

.meta-lbl {
  font-size: 0.8rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Hero Parallax Visual */
.hero-visual {
  position: relative;
  height: 540px;
  display: flex;
  align-items: center;
  justify-content: center;
  perspective: 1000px;
}

.parallax-layer {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.15s cubic-bezier(0, 0, 0.2, 1);
  will-change: transform;
  pointer-events: none;
}

.hero-joint-svg {
  width: 100%;
  max-width: 520px;
  height: auto;
  filter: drop-shadow(0 0 35px rgba(155, 92, 255, 0.4));
}

/* Scientific Cards & Bento Grids */
.bento-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.75rem;
}

.science-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 2.25rem;
  position: relative;
  overflow: hidden;
  transition: var(--transition-smooth);
  backdrop-filter: blur(12px);
}

.science-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-neon);
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(9, 5, 15, 0.7), var(--glow-violet);
}

.science-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--neon-violet), transparent);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.science-card:hover::before {
  opacity: 1;
}

/* Interactive Anatomy Atlas Styles */
.atlas-container {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 2.5rem;
  background: var(--deep-purple);
  border: 1px solid var(--border-neon);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: 0 20px 50px rgba(0,0,0,0.5);
  align-items: center;
}

.atlas-viewport {
  position: relative;
  background: #0B0614;
  border-radius: var(--radius-md);
  border: 1px solid rgba(155, 92, 255, 0.2);
  padding: 1.5rem;
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
}

.atlas-svg {
  width: 100%;
  max-width: 480px;
  height: auto;
}

.atlas-part {
  cursor: pointer;
  transition: all 0.25s ease;
}

.atlas-part:hover,
.atlas-part.active {
  filter: drop-shadow(0 0 12px var(--neon-magenta));
}

.atlas-details-panel {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.atlas-info-card {
  background: rgba(18, 10, 32, 0.85);
  border: 1px solid var(--border-neon);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  transition: var(--transition-smooth);
}

.atlas-tabs {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

.atlas-tab-btn {
  background: rgba(27, 13, 46, 0.7);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  font-family: var(--font-mono);
  cursor: pointer;
  transition: var(--transition-smooth);
}

.atlas-tab-btn:hover,
.atlas-tab-btn.active {
  background: var(--violet-primary);
  border-color: var(--neon-violet);
  color: #FFFFFF;
  box-shadow: 0 0 10px rgba(155, 92, 255, 0.4);
}

/* Fluid Supply Cycle Animation */
.cycle-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.25rem;
  margin-top: 2.5rem;
  position: relative;
}

.cycle-step {
  background: rgba(18, 10, 32, 0.8);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  text-align: center;
  position: relative;
  transition: var(--transition-smooth);
}

.cycle-step:hover {
  border-color: var(--electric-blue);
  box-shadow: var(--glow-blue);
  transform: translateY(-3px);
}

.cycle-step-num {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--electric-blue);
  margin-bottom: 0.5rem;
  display: block;
}

.cycle-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--neon-violet);
}

/* Joint Navigator */
.joint-tabs {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 2.5rem;
}

.joint-tab {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.joint-tab:hover,
.joint-tab.active {
  background: linear-gradient(135deg, var(--deep-purple), var(--violet-primary));
  border-color: var(--neon-violet);
  color: #FFFFFF;
  box-shadow: var(--glow-violet);
}

/* Exercise Database & Routine */
.filter-bar {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  align-items: center;
  margin-bottom: 2rem;
}

.filter-btn {
  background: rgba(27, 13, 46, 0.6);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  padding: 0.45rem 1rem;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.filter-btn.active,
.filter-btn:hover {
  background: var(--neon-violet);
  color: #09050F;
  font-weight: 700;
  border-color: var(--neon-violet);
}

.search-input {
  background: rgba(18, 10, 32, 0.9);
  border: 1px solid var(--border-neon);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  padding: 0.65rem 1.25rem;
  font-size: 0.95rem;
  width: 100%;
  max-width: 340px;
}

.search-input:focus {
  outline: none;
  border-color: var(--neon-magenta);
  box-shadow: var(--glow-magenta);
}

.exercise-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1.75rem;
}

.exercise-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition-smooth);
}

.exercise-card:hover {
  border-color: var(--electric-blue);
  box-shadow: 0 10px 25px rgba(0,0,0,0.6), var(--glow-blue);
  transform: translateY(-3px);
}

.ex-badge {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
  text-transform: uppercase;
}

.ex-badge-joint {
  background: rgba(155, 92, 255, 0.15);
  color: var(--neon-violet);
  border: 1px solid var(--border-neon);
}

.ex-badge-level {
  background: rgba(79, 216, 255, 0.15);
  color: var(--electric-blue);
  border: 1px solid rgba(79, 216, 255, 0.3);
}

/* 10-Minute Routine Timer Component */
.routine-box {
  background: linear-gradient(135deg, rgba(27, 13, 46, 0.9), rgba(18, 10, 32, 0.95));
  border: 1px solid var(--neon-violet);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: 0 15px 40px rgba(0,0,0,0.5), var(--glow-violet);
  position: relative;
  overflow: hidden;
}

.progress-track {
  width: 100%;
  height: 6px;
  background: rgba(255,255,255,0.08);
  border-radius: 4px;
  margin: 1.5rem 0;
  overflow: hidden;
  position: relative;
}

.progress-bar-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--neon-violet), var(--neon-magenta), var(--electric-blue));
  transition: width 0.3s ease;
  box-shadow: 0 0 12px var(--neon-magenta);
}

.timer-display {
  font-family: var(--font-mono);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  color: #FFFFFF;
  text-shadow: 0 0 20px var(--neon-magenta);
  letter-spacing: 0.05em;
  margin: 1rem 0;
}

/* Myth vs Fact Visual Flip / Split Cards */
.myth-card-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  overflow: hidden;
  margin-bottom: 1.5rem;
  background: var(--bg-card);
  transition: var(--transition-smooth);
}

.myth-card-split:hover {
  border-color: var(--neon-magenta);
  box-shadow: var(--glow-magenta);
}

.myth-side {
  background: rgba(232, 77, 255, 0.05);
  border-right: 1px solid rgba(232, 77, 255, 0.2);
  padding: 1.75rem;
}

.fact-side {
  background: rgba(79, 216, 255, 0.05);
  padding: 1.75rem;
}

.myth-label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--neon-magenta);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.fact-label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--electric-blue);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

/* FAQ Accordion */
.faq-accordion {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition-smooth);
}

.faq-item:hover,
.faq-item.open {
  border-color: var(--border-neon);
}

.faq-trigger {
  width: 100%;
  padding: 1.35rem 1.75rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  background: none;
  border: none;
  color: var(--text-main);
  font-size: 1.1rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  transition: color 0.2s ease;
}

.faq-trigger:hover {
  color: var(--neon-violet);
}

.faq-icon {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
  color: var(--neon-violet);
  transition: transform 0.3s ease;
}

.faq-item.open .faq-icon {
  transform: rotate(180deg);
  color: var(--neon-magenta);
}

.faq-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s cubic-bezier(0, 1, 0, 1);
  padding: 0 1.75rem;
}

.faq-item.open .faq-body {
  max-height: 1000px;
  padding: 0 1.75rem 1.5rem;
}

/* Editorial Article Layout & Cards */
.article-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 2rem;
}

.article-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: var(--transition-smooth);
}

.article-card:hover {
  border-color: var(--border-neon);
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(0,0,0,0.6), var(--glow-violet);
}

.article-img-wrap {
  width: 100%;
  height: 190px;
  overflow: hidden;
  position: relative;
  background: var(--deep-purple);
}

.article-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.article-card:hover .article-img-wrap img {
  transform: scale(1.04);
}

.article-body {
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.article-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--neon-magenta);
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.article-title {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
  color: var(--text-main);
  line-height: 1.35;
}

/* Footer */
footer.site-footer {
  background: #05030A;
  border-top: 1px solid var(--border-subtle);
  padding: 5rem 0 2.5rem;
  position: relative;
  z-index: 10;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: 3rem;
  margin-bottom: 4rem;
}

.footer-brand p {
  max-width: 320px;
  margin-top: 1rem;
  font-size: 0.95rem;
}

.footer-col h4 {
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--neon-violet);
  margin-bottom: 1.25rem;
  font-family: var(--font-mono);
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-links a {
  color: var(--text-muted);
  font-size: 0.92rem;
}

.footer-links a:hover {
  color: var(--neon-magenta);
  padding-left: 4px;
}

.footer-disclaimer {
  border-top: 1px solid var(--border-subtle);
  padding-top: 2rem;
  margin-top: 2rem;
  font-size: 0.85rem;
  color: var(--text-dim);
  text-align: center;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.6;
}

/* Responsive Breakpoints */
@media (max-width: 1100px) {
  .nav-links {
    gap: 0.95rem;
  }
  .nav-link {
    font-size: 0.84rem;
  }
  .brand-logo {
    font-size: 0.98rem;
  }
}

@media (max-width: 960px) {
  .nav-links {
    display: none;
  }
  .mobile-toggle {
    display: block;
  }
}

@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
    text-align: center;
  }
  .hero-desc {
    margin-left: auto;
    margin-right: auto;
  }
  .hero-cta-group {
    justify-content: center;
  }
  .hero-meta {
    justify-content: center;
  }
  .atlas-container {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
}

@media (max-width: 768px) {
  .header-actions .btn {
    display: none;
  }
  .myth-card-split {
    grid-template-columns: 1fr;
  }
  .myth-side {
    border-right: none;
    border-bottom: 1px solid rgba(232, 77, 255, 0.2);
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .brand-logo {
    font-size: 0.9rem;
    gap: 0.5rem;
  }
  .brand-logo svg {
    width: 26px;
    height: 26px;
  }
  .container {
    padding-left: 1rem;
    padding-right: 1rem;
  }
}

/* Accessibility: Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .parallax-layer {
    transform: none !important;
  }
}