/* ========================================
   DEMO Methodology Page
   ======================================== */

/* Violet accent override for DEMO page */
.demo-hero,
.demo-hero ~ .demo-section {
  --color-accent: #7c3aed;
}

[data-theme="dark"] .demo-hero,
[data-theme="dark"] .demo-hero ~ .demo-section {
  --color-accent: #a78bfa;
}

/* Hero */
.demo-hero {
  text-align: center;
  padding: var(--spacing-xl) 0 var(--spacing-xxl);
}

.demo-version {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--spacing-sm);
}

.demo-title {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--spacing-lg);
  line-height: 1.2;
}

.demo-acronym {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: var(--spacing-lg);
}

.demo-letter {
  font-family: var(--font-sans);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-accent);
  cursor: default;
  position: relative;
  transition: transform 0.2s ease;
}

.demo-letter:hover {
  transform: scale(1.15);
}

.demo-letter::after {
  content: attr(data-word);
  position: absolute;
  bottom: -1.8rem;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-secondary);
  opacity: 0;
  transition: opacity 0.2s ease;
  white-space: nowrap;
}

.demo-letter:hover::after {
  opacity: 1;
}

.demo-dot {
  font-size: 2rem;
  color: var(--color-text-secondary);
}

.demo-subtitle {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-style: italic;
  color: var(--color-text-secondary);
}

/* Sections */
.demo-section {
  margin-bottom: var(--spacing-xxl);
  padding-bottom: var(--spacing-xl);
  border-bottom: 1px solid var(--color-border);
}

.demo-section:last-child {
  border-bottom: none;
}

.demo-section-title {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-lg);
}

.demo-section-content {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  line-height: 1.8;
}

.demo-section-content p {
  margin-bottom: var(--spacing-md);
}

.demo-section-content blockquote {
  border-left: 3px solid var(--color-accent);
  padding-left: var(--spacing-md);
  margin: var(--spacing-lg) 0;
  font-style: italic;
  color: var(--color-text-secondary);
}

/* Shift Visual */
.demo-shift-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
  margin: var(--spacing-xl) 0;
}

.demo-shift-card {
  flex: 1;
  max-width: 220px;
  text-align: center;
  padding: var(--spacing-md);
  border: 1px solid var(--color-border);
  border-radius: 8px;
}

.demo-shift-card--new {
  border-color: var(--color-accent);
  background: rgba(124, 58, 237, 0.04);
}

[data-theme="dark"] .demo-shift-card--new {
  background: rgba(167, 139, 250, 0.1);
}

.demo-shift-label {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-secondary);
  margin-bottom: 0.5rem;
}

.demo-shift-value {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-text);
}

.demo-shift-icon {
  font-size: 1.5rem;
  margin-top: 0.5rem;
}

.demo-shift-arrow {
  font-size: 1.5rem;
  color: var(--color-text-secondary);
  flex-shrink: 0;
}

/* Framework Cycle */
.demo-cycle {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.demo-cycle-ring {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.demo-cycle-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.35rem;
  padding: var(--spacing-sm) var(--spacing-md);
  border: 2px solid var(--color-border);
  border-radius: 8px;
  background: none;
  cursor: pointer;
  transition: all 0.2s ease;
  min-width: 100px;
  font-family: var(--font-sans);
  color: var(--color-text);
}

.demo-cycle-step:hover {
  border-color: var(--color-text-secondary);
}

.demo-cycle-step--active {
  border-color: var(--color-accent);
  background: rgba(124, 58, 237, 0.04);
}

[data-theme="dark"] .demo-cycle-step--active {
  background: rgba(167, 139, 250, 0.1);
}

.demo-cycle-letter {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-accent);
}

.demo-cycle-label {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-secondary);
}

.demo-cycle-step--active .demo-cycle-label {
  color: var(--color-text);
}

.demo-cycle-details {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  line-height: 1.8;
  min-height: 200px;
}

.demo-cycle-detail h3 {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
  color: var(--color-text);
}

.demo-cycle-detail p {
  margin-bottom: var(--spacing-sm);
}

.demo-cycle-meta {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-top: var(--spacing-md);
  padding: var(--spacing-sm) var(--spacing-md);
  background: rgba(124, 58, 237, 0.04);
  border-radius: 6px;
  font-family: var(--font-sans);
  font-size: 0.95rem;
}

[data-theme="dark"] .demo-cycle-meta {
  background: rgba(167, 139, 250, 0.08);
}

/* Evaluate Stages */
.demo-eval-stages {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  margin-top: var(--spacing-sm);
}

.demo-eval-stage {
  padding: var(--spacing-sm) var(--spacing-md);
  border-left: 3px solid var(--color-accent);
}

.demo-eval-stage h4 {
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
  color: var(--color-text);
}

.demo-eval-stage p {
  margin-bottom: 0;
  font-size: 1rem;
}

/* Principles Accordion */
.demo-principles {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.demo-principle {
  border: 1px solid var(--color-border);
  border-radius: 6px;
  overflow: hidden;
}

.demo-principle + .demo-principle {
  margin-top: -1px;
}

.demo-principle summary {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  cursor: pointer;
  list-style: none;
  font-family: var(--font-serif);
  font-size: 1.05rem;
  line-height: 1.5;
  transition: background 0.15s ease;
}

.demo-principle summary::-webkit-details-marker {
  display: none;
}

.demo-principle summary:hover {
  background: rgba(0, 0, 0, 0.02);
}

[data-theme="dark"] .demo-principle summary:hover {
  background: rgba(255, 255, 255, 0.03);
}

.demo-principle[open] summary {
  border-bottom: 1px solid var(--color-border);
}

.demo-principle-num {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-accent);
  min-width: 1.8rem;
  text-align: center;
  flex-shrink: 0;
}

.demo-principle-title {
  color: var(--color-text);
  font-weight: 600;
}

.demo-principle-body {
  padding: var(--spacing-md);
  font-family: var(--font-serif);
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--color-text-secondary);
}

.demo-principle-body p {
  margin: 0;
}

/* Comparison Table */
.demo-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.demo-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-sans);
  font-size: 0.95rem;
}

.demo-table th,
.demo-table td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
}

.demo-table th {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-secondary);
}

.demo-table-label {
  font-weight: 600;
  color: var(--color-text);
  white-space: nowrap;
}

.demo-table-highlight {
  background: rgba(124, 58, 237, 0.04);
}

[data-theme="dark"] .demo-table-highlight {
  background: rgba(167, 139, 250, 0.08);
}

/* When to Use Cards */
.demo-when-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
}

.demo-when-card {
  padding: var(--spacing-md);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  transition: border-color 0.2s ease;
}

.demo-when-card:hover {
  border-color: var(--color-accent);
}

.demo-when-icon {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.demo-when-card h4 {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--color-text);
}

.demo-when-card p {
  font-family: var(--font-serif);
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--color-text-secondary);
  margin: 0;
}

/* Demo Session Timeline */
.demo-session-timeline {
  position: relative;
  padding-left: 2rem;
  margin-top: var(--spacing-lg);
}

.demo-session-timeline::before {
  content: '';
  position: absolute;
  left: 5px;
  top: 0.5rem;
  bottom: 0.5rem;
  width: 2px;
  background: var(--color-accent);
}

.demo-session-phase {
  position: relative;
  margin-bottom: var(--spacing-lg);
}

.demo-session-phase:last-child {
  margin-bottom: 0;
}

.demo-session-marker {
  position: absolute;
  left: -2rem;
  top: 0.3rem;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-accent);
  border: 2px solid var(--color-bg);
}

.demo-session-body h4 {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--color-text);
}

.demo-session-body p {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-sm);
}

.demo-session-body blockquote {
  border-left: none;
  padding-left: 0;
  font-style: italic;
  color: var(--color-text-secondary);
  font-family: var(--font-serif);
  font-size: 1rem;
  margin: var(--spacing-sm) 0 0 0;
}

.demo-session-details {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--color-text-secondary);
}

/* CTA */
.demo-cta {
  text-align: center;
  border-bottom: none;
}

.demo-cta-inner {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  line-height: 1.8;
  color: var(--color-text-secondary);
}

.demo-cta-inner p {
  margin-bottom: var(--spacing-md);
}

.demo-cta-bold {
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--color-text);
}

.demo-cta-welcome {
  font-size: 1.75rem;
  font-weight: 600;
  color: var(--color-accent);
  margin-top: var(--spacing-sm);
}

/* Scroll Reveal Animation */
[data-reveal] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

[data-reveal].revealed {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive */
@media (max-width: 767px) {
  .demo-title {
    font-size: 1.85rem;
  }

  .demo-letter {
    font-size: 2rem;
  }

  .demo-dot {
    font-size: 1.5rem;
  }

  .demo-shift-visual {
    flex-direction: column;
  }

  .demo-shift-card {
    max-width: 100%;
    width: 100%;
  }

  .demo-shift-arrow {
    transform: rotate(90deg);
  }

  .demo-cycle-ring {
    gap: 0.4rem;
  }

  .demo-cycle-step {
    min-width: 70px;
    padding: var(--spacing-xs) var(--spacing-sm);
  }

  .demo-cycle-letter {
    font-size: 1.35rem;
  }

  .demo-cycle-label {
    font-size: 0.7rem;
  }

  .demo-when-grid {
    grid-template-columns: 1fr;
  }

  .demo-table {
    font-size: 0.85rem;
  }

  .demo-table th,
  .demo-table td {
    padding: 0.5rem 0.6rem;
  }
}