/* ==========================================================================
   ARTHRO HILFE — THE JOINT MANUAL
   Color Palette: Warm Paper, Graphite, Lime, Olive, Warm Yellow, Terracotta
   Visual Identity: Editorial Manual + Architectural Joint Grid (SVG & CSS)
   ========================================================================== */

:root {
  --color-paper: #F3F0E6;
  --color-paper-light: #FAF8F2;
  --color-paper-card: #ECE8DC;
  --color-graphite: #171918;
  --color-graphite-soft: #2B2E2C;
  --color-graphite-muted: #525754;
  --color-lime: #B7D638;
  --color-lime-hover: #A6C42B;
  --color-lime-light: #EBF4C8;
  --color-olive: #6D783B;
  --color-olive-dark: #4F582B;
  --color-yellow: #E3B94A;
  --color-yellow-light: #FCF4D9;
  --color-terracotta: #C96C55;
  --color-terracotta-light: #FBECE8;
  --color-border: #D8D3C3;
  --color-border-dark: #2B2E2C;

  --font-serif: "Newsreader", "Playfair Display", Georgia, "Times New Roman", serif;
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: "JetBrains Mono", "SF Mono", Menlo, Consolas, monospace;

  --container-max: 1280px;
  --header-height: 80px;
  --header-height-compact: 64px;
  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-base: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  background-color: var(--color-paper);
  color: var(--color-graphite);
  font-family: var(--font-sans);
  line-height: 1.65;
  letter-spacing: -0.01em;
  overflow-x: hidden;
  position: relative;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

/* Base Editorial Typography */
h1, h2, h3, h4 {
  color: var(--color-graphite);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.03em;
}

h1 {
  font-family: var(--font-sans);
  font-size: clamp(2.5rem, 5.5vw, 4.75rem);
  text-transform: uppercase;
  font-weight: 800;
}

h2 {
  font-size: clamp(2rem, 3.8vw, 3.25rem);
  text-transform: uppercase;
  font-weight: 800;
}

h3 {
  font-size: clamp(1.35rem, 2.2vw, 1.85rem);
}

p {
  margin-bottom: 1.25rem;
  font-size: 1.05rem;
  color: var(--color-graphite-soft);
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* Layout Container */
.container {
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
  width: 100%;
}

.container-narrow {
  max-width: 960px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

/* Editorial Chapter Label & Indicators */
.chapter-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.825rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-graphite);
  background: var(--color-lime-light);
  border: 1px solid var(--color-graphite);
  padding: 0.35rem 0.85rem;
  border-radius: 2px;
  margin-bottom: 1.25rem;
}

.chapter-badge.dark {
  background: var(--color-graphite-soft);
  color: var(--color-paper);
  border-color: var(--color-lime);
}

.section-lead {
  font-size: clamp(1.15rem, 1.8vw, 1.45rem);
  line-height: 1.5;
  color: var(--color-graphite-soft);
  max-width: 820px;
  margin-bottom: 2.5rem;
}

/* Navigation Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  background: rgba(243, 240, 230, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: height var(--transition-fast), background var(--transition-fast), border-color var(--transition-fast);
}

.site-header.scrolled {
  height: var(--header-height-compact);
  background: rgba(243, 240, 230, 0.98);
  border-bottom: 1px solid var(--color-graphite);
  box-shadow: 0 4px 20px rgba(23, 25, 24, 0.04);
}

.header-container {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.brand-logo-icon {
  width: 36px;
  height: 36px;
}

.brand-title {
  font-family: var(--font-sans);
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--color-graphite);
  line-height: 1;
}

.brand-sub {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  color: var(--color-olive);
  font-weight: 600;
  margin-top: 2px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  list-style: none;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-graphite);
  position: relative;
  padding: 0.4rem 0;
  transition: color var(--transition-fast);
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-lime);
  transition: width var(--transition-fast);
}

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

.nav-cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background-color: var(--color-graphite);
  color: var(--color-paper);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.65rem 1.35rem;
  border-radius: 4px;
  border: 1px solid var(--color-graphite);
  transition: all var(--transition-fast);
}

.nav-cta-btn:hover {
  background-color: var(--color-lime);
  color: var(--color-graphite);
  border-color: var(--color-graphite);
}

/* Mobile Hamburger */
.mobile-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 8px;
  flex-direction: column;
  justify-content: space-around;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: 4px;
}

.mobile-toggle span {
  width: 100%;
  height: 2px;
  background-color: var(--color-graphite);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.mobile-nav-panel {
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-paper-light);
  border-top: 1px solid var(--color-border);
  padding: 2rem 1.5rem;
  transform: translateY(-100%);
  opacity: 0;
  pointer-events: none;
  transition: transform var(--transition-base), opacity var(--transition-base);
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  overflow-y: auto;
}

.mobile-nav-panel.open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.mobile-nav-link {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-graphite);
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 0.75rem;
}

/* Buttons and Links */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  padding: 0.95rem 1.75rem;
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  border-radius: 4px;
  transition: all var(--transition-fast);
  cursor: pointer;
  text-decoration: none;
}

.btn-primary {
  background-color: var(--color-graphite);
  color: var(--color-paper);
  border: 2px solid var(--color-graphite);
}

.btn-primary:hover {
  background-color: var(--color-lime);
  color: var(--color-graphite);
  border-color: var(--color-graphite);
  box-shadow: 4px 4px 0 var(--color-graphite);
  transform: translate(-2px, -2px);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-graphite);
  border: 2px solid var(--color-graphite);
}

.btn-secondary:hover {
  background-color: var(--color-paper-card);
  box-shadow: 4px 4px 0 var(--color-graphite);
  transform: translate(-2px, -2px);
}

.btn-lime {
  background-color: var(--color-lime);
  color: var(--color-graphite);
  border: 2px solid var(--color-graphite);
}

.btn-lime:hover {
  background-color: var(--color-graphite);
  color: var(--color-paper);
}

/* HERO SECTION */
.hero-section {
  padding-top: calc(var(--header-height) + 3rem);
  padding-bottom: 5rem;
  border-bottom: 2px solid var(--color-graphite);
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 4rem;
  align-items: center;
}

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

.hero-headline {
  margin-bottom: 1.75rem;
}

.hero-headline span.lime-highlight {
  position: relative;
  display: inline-block;
  z-index: 1;
}

.hero-headline span.lime-highlight::before {
  content: "";
  position: absolute;
  bottom: 0.1em;
  left: -0.1em;
  right: -0.1em;
  height: 0.4em;
  background-color: var(--color-lime);
  z-index: -1;
  transform: rotate(-1deg);
}

.hero-quote {
  font-size: clamp(1.2rem, 1.75vw, 1.45rem);
  line-height: 1.5;
  color: var(--color-graphite);
  border-left: 4px solid var(--color-lime);
  padding-left: 1.5rem;
  margin-bottom: 2.5rem;
  background: rgba(235, 244, 200, 0.35);
  padding-top: 0.75rem;
  padding-bottom: 0.75rem;
  border-radius: 0 4px 4px 0;
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
}

.hero-visual {
  position: relative;
  border: 2px solid var(--color-graphite);
  border-radius: 4px;
  background-color: var(--color-paper-card);
  box-shadow: 8px 8px 0 var(--color-graphite);
}

.hero-image-wrapper {
  position: relative;
  overflow: hidden;
  height: 480px;
}

.hero-image-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.hero-visual:hover img {
  transform: scale(1.03);
}

/* SVG Joint Grid Overlay */
.joint-grid-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 3;
}

.hero-tag {
  position: absolute;
  bottom: 1.25rem;
  left: 1.25rem;
  z-index: 4;
  background: rgba(23, 25, 24, 0.9);
  color: var(--color-paper);
  padding: 0.5rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  border-left: 3px solid var(--color-lime);
  border-radius: 2px;
}

/* SECTION 7: WAS BRAUCHST DU GERADE? */
.section-needs {
  padding: 5.5rem 0;
  background-color: var(--color-paper-light);
  border-bottom: 1px solid var(--color-border);
}

.needs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.75rem;
  margin-top: 3rem;
}

.need-card {
  background: var(--color-paper);
  border: 2px solid var(--color-graphite);
  padding: 2.25rem;
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
  box-shadow: 4px 4px 0 var(--color-graphite);
}

.need-card:hover {
  transform: translate(-3px, -3px);
  box-shadow: 7px 7px 0 var(--color-graphite);
  border-color: var(--color-graphite);
}

.need-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 6px;
  height: 100%;
  background: var(--color-lime);
  transition: width var(--transition-fast);
}

.need-card:hover::before {
  width: 10px;
}

.need-card .need-index {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-olive);
  margin-bottom: 1rem;
}

.need-card h3 {
  font-size: 1.45rem;
  margin-bottom: 0.75rem;
}

.need-card p {
  font-size: 0.98rem;
  color: var(--color-graphite-soft);
  margin-bottom: 1.75rem;
  flex-grow: 1;
}

.need-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-graphite);
}

.need-link svg {
  transition: transform var(--transition-fast);
}

.need-card:hover .need-link svg {
  transform: translateX(5px);
}

/* SECTION 8: 01 / ARTHROSE ERKLÄRT */
.section-arthrose {
  padding: 6rem 0;
  border-bottom: 1px solid var(--color-border);
}

.editorial-twocol {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.editorial-card {
  background: var(--color-paper-card);
  border: 1px solid var(--color-border);
  padding: 2.5rem;
  border-radius: 4px;
}

.mechanism-diagram {
  margin-top: 2rem;
  border: 1px dashed var(--color-graphite-muted);
  padding: 1.5rem;
  background: var(--color-paper-light);
  border-radius: 4px;
}

/* SECTION 9: ARTHROSE-NAVIGATOR */
.section-navigator {
  padding: 6rem 0;
  background-color: var(--color-graphite);
  color: var(--color-paper);
  border-bottom: 2px solid var(--color-graphite);
}

.section-navigator h2,
.section-navigator h3,
.section-navigator p {
  color: var(--color-paper);
}

.section-navigator .section-lead {
  color: var(--color-paper-card);
}

.navigator-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2.5rem;
  margin-bottom: 3rem;
  border-bottom: 1px solid var(--color-graphite-soft);
  padding-bottom: 1.5rem;
}

.nav-tab-btn {
  background: var(--color-graphite-soft);
  color: var(--color-paper);
  border: 1px solid var(--color-graphite-muted);
  padding: 0.85rem 1.6rem;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.nav-tab-btn:hover {
  background: var(--color-graphite-muted);
  color: var(--color-lime);
}

.nav-tab-btn.active {
  background: var(--color-lime);
  color: var(--color-graphite);
  border-color: var(--color-lime);
  box-shadow: 0 4px 12px rgba(183, 214, 56, 0.25);
}

.navigator-panel {
  display: none;
  background: var(--color-graphite-soft);
  border: 1px solid var(--color-graphite-muted);
  border-radius: 6px;
  padding: 3rem;
}

.navigator-panel.active {
  display: block;
  animation: fadeIn 0.4s ease-out;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.nav-panel-grid {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 3.5rem;
}

.panel-subgrid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.75rem;
  margin-top: 1.5rem;
}

.panel-block {
  background: rgba(23, 25, 24, 0.6);
  border: 1px solid #3c423e;
  padding: 1.5rem;
  border-radius: 4px;
}

.panel-block h4 {
  color: var(--color-lime);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.75rem;
}

.panel-block ul {
  list-style: none;
}

.panel-block li {
  font-size: 0.925rem;
  color: var(--color-paper-card);
  margin-bottom: 0.5rem;
  position: relative;
  padding-left: 1.25rem;
}

.panel-block li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--color-yellow);
}

/* SECTION 10-13: JOINT CHAPTERS (Knie, Hüfte, Hand, Schulter) */
.joint-chapter {
  padding: 6rem 0;
  border-bottom: 1px solid var(--color-border);
}

.joint-chapter.alt-bg {
  background-color: var(--color-paper-light);
}

.chapter-layout {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 4.5rem;
  align-items: center;
}

.chapter-layout.reverse {
  grid-template-columns: 1.1fr 1fr;
}

.chapter-photo-frame {
  position: relative;
  border: 2px solid var(--color-graphite);
  box-shadow: 6px 6px 0 var(--color-graphite);
  border-radius: 4px;
  overflow: hidden;
  background: var(--color-paper-card);
}

.chapter-photo-frame img {
  width: 100%;
  height: 420px;
  object-fit: cover;
}

/* Interactive SVG Joint Axis Scheme */
.joint-vector-card {
  margin-top: 2rem;
  background: var(--color-paper);
  border: 1px solid var(--color-graphite);
  padding: 1.5rem;
  border-radius: 4px;
}

/* SECTION 15: BEWEGUNGSRADAR (Interactive Visualization) */
.section-radar {
  padding: 6rem 0;
  background: var(--color-paper);
  border-bottom: 1px solid var(--color-border);
}

.radar-container {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 4rem;
  align-items: center;
  margin-top: 3rem;
}

.radar-interactive-box {
  background: var(--color-graphite);
  border: 2px solid var(--color-graphite);
  border-radius: 8px;
  padding: 2.5rem;
  box-shadow: 8px 8px 0 var(--color-lime);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.radar-svg {
  width: 100%;
  max-width: 440px;
  height: auto;
}

.radar-node {
  cursor: pointer;
  transition: all var(--transition-fast);
}

.radar-node:hover circle,
.radar-node.active circle {
  fill: var(--color-lime);
  stroke: var(--color-paper);
  stroke-width: 3;
}

.radar-node text {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  fill: var(--color-paper);
  pointer-events: none;
  text-anchor: middle;
}

.radar-info-box {
  background: var(--color-paper-light);
  border: 2px solid var(--color-graphite);
  padding: 2.75rem;
  border-radius: 6px;
  box-shadow: 6px 6px 0 var(--color-graphite);
}

.radar-info-box h3 {
  font-size: 1.85rem;
  margin-bottom: 1rem;
  color: var(--color-graphite);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.radar-info-badge {
  background: var(--color-lime);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: 0.25rem 0.6rem;
  border-radius: 3px;
  border: 1px solid var(--color-graphite);
}

/* SECTION 16: BEWEGUNGSFORMEN */
.movement-editorial-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
  margin-top: 3rem;
}

.movement-item {
  background: var(--color-paper-light);
  border: 1px solid var(--color-graphite);
  padding: 1.75rem;
  border-radius: 4px;
  box-shadow: 3px 3px 0 var(--color-graphite);
  transition: transform var(--transition-fast);
}

.movement-item:hover {
  transform: translateY(-3px);
  box-shadow: 5px 5px 0 var(--color-lime);
  border-color: var(--color-graphite);
}

.movement-item h4 {
  font-size: 1.25rem;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* SECTION 17: ÜBUNGSBIBLIOTHEK */
.section-exercises {
  padding: 6rem 0;
  background-color: var(--color-paper-light);
  border-bottom: 2px solid var(--color-graphite);
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 2.5rem;
  margin-bottom: 3rem;
}

.filter-chip {
  padding: 0.6rem 1.2rem;
  background: var(--color-paper);
  border: 1px solid var(--color-graphite);
  border-radius: 30px;
  font-family: var(--font-mono);
  font-size: 0.825rem;
  font-weight: 700;
  color: var(--color-graphite);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-chip:hover {
  background: var(--color-paper-card);
}

.filter-chip.active {
  background: var(--color-graphite);
  color: var(--color-paper);
  box-shadow: 2px 2px 0 var(--color-lime);
}

.exercises-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
  gap: 2rem;
}

.exercise-card {
  background: var(--color-paper);
  border: 2px solid var(--color-graphite);
  border-radius: 6px;
  padding: 2.25rem;
  box-shadow: 4px 4px 0 var(--color-graphite);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all var(--transition-fast);
}

.exercise-card:hover {
  transform: translateY(-4px);
  box-shadow: 8px 8px 0 var(--color-lime);
}

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

.exercise-meta-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 0.85rem;
}

.meta-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 0.2rem 0.55rem;
  background: var(--color-paper-card);
  border: 1px solid var(--color-border);
  border-radius: 2px;
  color: var(--color-graphite-muted);
}

.exercise-card h3 {
  font-size: 1.35rem;
  line-height: 1.3;
}

.exercise-details dl {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  font-size: 0.925rem;
}

.exercise-details dt {
  font-family: var(--font-mono);
  font-size: 0.775rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-olive-dark);
  margin-bottom: 0.2rem;
}

.exercise-details dd {
  color: var(--color-graphite-soft);
  line-height: 1.5;
}

.exercise-alert-box {
  background: var(--color-yellow-light);
  border-left: 3px solid var(--color-yellow);
  padding: 0.65rem 0.9rem;
  font-size: 0.875rem;
  margin-top: 1rem;
  border-radius: 0 3px 3px 0;
}

/* SECTION 18: MEIN 10-MINUTEN-START (Interactive Routine) */
.section-routine {
  padding: 6rem 0;
  background-color: var(--color-graphite);
  color: var(--color-paper);
  border-bottom: 2px solid var(--color-graphite);
}

.section-routine h2,
.section-routine p {
  color: var(--color-paper);
}

.routine-app {
  margin-top: 3.5rem;
  background: var(--color-graphite-soft);
  border: 2px solid var(--color-lime);
  border-radius: 8px;
  padding: 3rem;
  box-shadow: 8px 8px 0 rgba(183, 214, 56, 0.2);
}

.routine-steps-nav {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 0.75rem;
  margin-bottom: 2.5rem;
}

.step-btn {
  background: #1e2220;
  border: 1px solid #3d453f;
  padding: 1rem 0.5rem;
  text-align: center;
  border-radius: 4px;
  color: var(--color-paper-card);
  transition: all var(--transition-fast);
}

.step-btn .step-number {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--color-lime);
  margin-bottom: 0.25rem;
}

.step-btn .step-label {
  font-size: 0.775rem;
  text-transform: uppercase;
  font-weight: 600;
}

.step-btn.active {
  background: var(--color-lime);
  color: var(--color-graphite);
  border-color: var(--color-lime);
}

.step-btn.active .step-number {
  color: var(--color-graphite);
}

.routine-display-box {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3rem;
  align-items: center;
  background: #171918;
  border: 1px solid #333834;
  padding: 2.5rem;
  border-radius: 6px;
}

.routine-timer-widget {
  text-align: center;
  padding: 2rem;
  background: #1e2220;
  border: 1px solid #333834;
  border-radius: 6px;
}

.timer-number {
  font-family: var(--font-mono);
  font-size: 3.5rem;
  font-weight: 800;
  color: var(--color-lime);
  margin-bottom: 1rem;
}

.timer-controls {
  display: flex;
  justify-content: center;
  gap: 1rem;
}

/* SECTION 19: ALLTAGSHILFE */
.section-daily {
  padding: 6rem 0;
  background: var(--color-paper);
  border-bottom: 1px solid var(--color-border);
}

.daily-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 3.5rem;
}

.daily-card {
  background: var(--color-paper-light);
  border: 2px solid var(--color-graphite);
  padding: 2.25rem;
  border-radius: 4px;
  box-shadow: 4px 4px 0 var(--color-graphite);
  transition: transform var(--transition-fast);
}

.daily-card:hover {
  transform: translateY(-4px);
  box-shadow: 6px 6px 0 var(--color-lime);
}

.daily-card .daily-time {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-olive);
  margin-bottom: 0.5rem;
  display: block;
}

/* SECTION 21: BEHANDLUNGSATLAS */
.section-atlas {
  padding: 6rem 0;
  background: var(--color-paper-card);
  border-bottom: 1px solid var(--color-border);
}

.treatment-accordion {
  margin-top: 3rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.treatment-item {
  background: var(--color-paper);
  border: 2px solid var(--color-graphite);
  border-radius: 4px;
  overflow: hidden;
  box-shadow: 3px 3px 0 var(--color-graphite);
}

.treatment-header {
  width: 100%;
  padding: 1.5rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--color-paper);
  font-size: 1.25rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: -0.01em;
  color: var(--color-graphite);
  text-align: left;
}

.treatment-header:hover {
  background: var(--color-paper-light);
}

.treatment-body {
  padding: 0 2rem;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease-out, padding 0.4s ease-out;
  background: var(--color-paper-light);
  border-top: 1px solid transparent;
}

.treatment-item.active .treatment-body {
  padding: 2rem;
  max-height: 800px;
  border-top: 1px solid var(--color-border);
}

.treatment-item.active .treatment-icon {
  transform: rotate(45deg);
}

.treatment-cols {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
}

.t-col h5 {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  color: var(--color-olive-dark);
  margin-bottom: 0.5rem;
}

/* SECTION 22: WAS KANN ICH SELBST TUN (5-Punkte-Ansatz) */
.section-self-help {
  padding: 6rem 0;
  background: var(--color-paper);
  border-bottom: 1px solid var(--color-border);
}

.self-help-steps {
  margin-top: 3.5rem;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.self-step-card {
  display: grid;
  grid-template-columns: 140px 1fr;
  background: var(--color-paper-light);
  border: 2px solid var(--color-graphite);
  border-radius: 6px;
  overflow: hidden;
  box-shadow: 6px 6px 0 var(--color-graphite);
}

.step-num-box {
  background: var(--color-graphite);
  color: var(--color-lime);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 2.25rem;
  font-weight: 800;
  border-right: 2px solid var(--color-graphite);
}

.step-content-box {
  padding: 2.5rem;
}

/* SECTION 24: SUPPLEMENTE */
.supplements-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.supp-card {
  background: var(--color-paper-light);
  border: 2px solid var(--color-graphite);
  border-radius: 4px;
  padding: 2rem;
  box-shadow: 4px 4px 0 var(--color-graphite);
}

.supp-card h3 {
  font-size: 1.35rem;
  margin-bottom: 1.25rem;
  border-bottom: 2px solid var(--color-lime);
  padding-bottom: 0.5rem;
}

.supp-details dl {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  font-size: 0.95rem;
}

.supp-details dt {
  font-family: var(--font-mono);
  font-size: 0.775rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-olive);
}

/* SECTION 25: MYTHEN */
.myths-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
  margin-top: 3.5rem;
}

.myth-card {
  background: var(--color-paper-light);
  border: 2px solid var(--color-graphite);
  border-radius: 4px;
  overflow: hidden;
  box-shadow: 5px 5px 0 var(--color-graphite);
}

.myth-header {
  background: #E8D5CE;
  padding: 1.5rem;
  border-bottom: 2px solid var(--color-graphite);
}

.myth-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--color-terracotta);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.25rem;
  display: block;
}

.myth-header h4 {
  font-size: 1.15rem;
  color: var(--color-graphite);
}

.myth-reality {
  padding: 1.75rem;
  background: var(--color-paper);
}

.reality-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--color-olive-dark);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.5rem;
  display: block;
}

/* SECTION 26: WANN HILFE SUCHEN? */
.section-warning {
  padding: 5rem 0;
  background-color: var(--color-terracotta-light);
  border-top: 2px solid var(--color-terracotta);
  border-bottom: 2px solid var(--color-terracotta);
}

.warning-box {
  background: var(--color-paper-light);
  border: 2px solid var(--color-terracotta);
  border-radius: 6px;
  padding: 3rem;
  box-shadow: 6px 6px 0 var(--color-terracotta);
}

.warning-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.warning-item {
  background: var(--color-paper);
  border-left: 4px solid var(--color-terracotta);
  padding: 1rem 1.25rem;
  border-radius: 0 4px 4px 0;
  font-weight: 600;
  font-size: 0.95rem;
}

/* SECTION 27: ARTIKELBEREICH */
.section-articles {
  padding: 6rem 0;
  background-color: var(--color-paper);
  border-bottom: 2px solid var(--color-graphite);
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.article-card {
  background: var(--color-paper-light);
  border: 2px solid var(--color-graphite);
  padding: 2.25rem;
  border-radius: 4px;
  box-shadow: 4px 4px 0 var(--color-graphite);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all var(--transition-fast);
}

.article-card:hover {
  transform: translateY(-4px);
  box-shadow: 6px 6px 0 var(--color-lime);
}

.article-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.775rem;
  margin-bottom: 1rem;
}

.article-category {
  background: var(--color-paper-card);
  padding: 0.2rem 0.6rem;
  border-radius: 2px;
  font-weight: 700;
  border: 1px solid var(--color-border);
}

.article-readtime {
  color: var(--color-graphite-muted);
}

.article-card h3 {
  font-size: 1.35rem;
  margin-bottom: 0.85rem;
}

.article-card p {
  font-size: 0.95rem;
  flex-grow: 1;
  margin-bottom: 1.5rem;
}

.article-modal-btn {
  align-self: flex-start;
  font-weight: 700;
  font-size: 0.9rem;
  text-transform: uppercase;
  color: var(--color-graphite);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  border-bottom: 2px solid var(--color-lime);
  padding-bottom: 2px;
}

/* SECTION 28: FAQ */
.section-faq {
  padding: 6rem 0;
  background-color: var(--color-paper-card);
  border-bottom: 2px solid var(--color-graphite);
}

.faq-search-box {
  margin-top: 2rem;
  margin-bottom: 3rem;
  max-width: 640px;
}

.faq-input {
  width: 100%;
  padding: 1rem 1.5rem;
  font-size: 1.05rem;
  border: 2px solid var(--color-graphite);
  border-radius: 4px;
  background: var(--color-paper-light);
  font-family: inherit;
  box-shadow: 4px 4px 0 var(--color-graphite);
}

.faq-input:focus {
  outline: none;
  border-color: var(--color-lime);
  box-shadow: 4px 4px 0 var(--color-lime);
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  background: var(--color-paper);
  border: 1px solid var(--color-graphite);
  border-radius: 4px;
  overflow: hidden;
  box-shadow: 2px 2px 0 var(--color-graphite);
}

.faq-question {
  width: 100%;
  padding: 1.25rem 1.75rem;
  text-align: left;
  background: var(--color-paper);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-graphite);
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  border: none;
}

.faq-question:hover {
  background: var(--color-paper-light);
}

.faq-answer {
  padding: 0 1.75rem;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease-out, padding 0.35s ease-out;
  background: var(--color-paper-light);
}

.faq-item.active .faq-answer {
  padding: 1.5rem 1.75rem;
  max-height: 500px;
  border-top: 1px solid var(--color-border);
}

.faq-item.active .faq-toggle-icon {
  transform: rotate(45deg);
}

/* FOOTER */
.site-footer {
  background-color: var(--color-graphite);
  color: var(--color-paper);
  padding: 5rem 0 3rem 0;
  border-top: 4px solid var(--color-lime);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 3.5rem;
  margin-bottom: 4rem;
}

.footer-brand h3 {
  color: var(--color-paper);
  font-size: 1.6rem;
  margin-bottom: 0.5rem;
}

.footer-brand p {
  color: var(--color-paper-card);
  font-size: 0.95rem;
  margin-top: 1rem;
}

.footer-col h4 {
  color: var(--color-lime);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 1.25rem;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.75rem;
}

.footer-links a {
  color: var(--color-paper-card);
  font-size: 0.95rem;
}

.footer-links a:hover {
  color: var(--color-lime);
}

.footer-disclaimer {
  background: #111312;
  border: 1px solid #2B2E2C;
  padding: 1.5rem;
  border-radius: 4px;
  color: #999F9B;
  font-size: 0.85rem;
  line-height: 1.6;
  margin-bottom: 2.5rem;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid #2B2E2C;
  padding-top: 2rem;
  font-size: 0.825rem;
  color: #7A817D;
  font-family: var(--font-mono);
}

/* ARTICLE MODAL / DIALOG */
.article-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(23, 25, 24, 0.75);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.article-modal.open {
  display: flex;
}

.modal-content {
  background: var(--color-paper-light);
  border: 3px solid var(--color-graphite);
  border-radius: 6px;
  max-width: 820px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  padding: 3rem;
  box-shadow: 12px 12px 0 var(--color-graphite);
  position: relative;
}

.modal-close-btn {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  width: 44px;
  height: 44px;
  background: var(--color-graphite);
  color: var(--color-paper);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.modal-close-btn:hover {
  background: var(--color-lime);
  color: var(--color-graphite);
}

/* ACCESSIBILITY & PREFERS-REDUCED-MOTION */
@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;
  }
}

/* RESPONSIVE DESIGN (320px - 1440px) */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  .editorial-twocol,
  .chapter-layout,
  .chapter-layout.reverse,
  .nav-panel-grid,
  .radar-container,
  .routine-display-box {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
  }
}

@media (max-width: 768px) {
  .nav-links,
  .nav-cta-btn {
    display: none;
  }
  .mobile-toggle {
    display: flex;
  }
  .routine-steps-nav {
    grid-template-columns: repeat(3, 1fr);
  }
  .self-step-card {
    grid-template-columns: 1fr;
  }
  .step-num-box {
    padding: 1rem;
    border-right: none;
    border-bottom: 2px solid var(--color-graphite);
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
  .modal-content {
    padding: 2rem 1.5rem;
  }
}

@media (max-width: 480px) {
  .container {
    padding-left: 1rem;
    padding-right: 1rem;
  }
  .routine-steps-nav {
    grid-template-columns: repeat(2, 1fr);
  }
  .hero-image-wrapper {
    height: 320px;
  }
  .chapter-photo-frame img {
    height: 280px;
  }
  .timer-number {
    font-size: 2.75rem;
  }
}