/**
 * Case Studies - Content Styles
 * Layout handled by shared/layout.css
 */

/* ============================================================================
 * RESET & BASE
 * ============================================================================ */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font-body);
  font-size: var(--font-size-14);
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-bg);
  min-height: 100vh;
}

/* ============================================================================
 * CONTENT CONTAINER OVERRIDE - Wider for document layout
 * ============================================================================ */

.site-layout__inner {
  max-width: 1100px;
}

/* ============================================================================
 * BACKGROUND - Subtle, calm decorative background
 * ============================================================================ */

.page-wrapper::before {
  content: '';
  position: fixed;
  inset: 0;
  background: radial-gradient(ellipse 80% 60% at 50% 100%, rgba(71, 85, 105, 0.06) 0%, transparent 50%);
  pointer-events: none;
  z-index: -1;
}

[data-theme="light"] .page-wrapper::before {
  background: radial-gradient(ellipse 80% 60% at 50% 100%, rgba(71, 85, 105, 0.08) 0%, transparent 50%);
}

/* ============================================================================
 * PAGE TITLE - Content header below site navigation
 * ============================================================================ */

.page-header {
  text-align: center;
}

.page-title {
  font-family: var(--font-display);
  font-size: var(--font-size-24);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  letter-spacing: -0.01em;
  margin: 0;
}

/* Page title accent - subtle bottom border */
.page-header--studies::after {
  content: '';
  display: block;
  width: 40px;
  height: 1px;
  background: var(--color-border);
  margin: var(--spacing-3) auto 0;
}

/* ============================================================================
 * DOCUMENT LAYOUT - Content-specific structure
 * ============================================================================ */

.document-layout {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-6);
}

/* ============================================================================
 * PREMISE
 * ============================================================================ */

.premise {
  max-width: 100%;
  width: 100%;
  padding: var(--spacing-2) var(--spacing-8);
  align-self: center;
  text-align: center;
}

.premise p {
  color: var(--color-text-2);
  margin-bottom: var(--spacing-2);
}

.premise p:last-child {
  margin-bottom: 0;
}

.premise strong,
.premise em {
  color: var(--color-text-2);
  font-weight: var(--font-weight-normal);
  font-style: normal;
}

.premise-note {
  font-style: italic;
  color: var(--color-text-3);
}

.premise-note em {
  font-style: normal;
  color: var(--color-text-2);
}

/* ============================================================================
 * READING GUIDE
 * ============================================================================ */

.reading-guide {
  max-width: 720px;
  padding: var(--spacing-5) 0;
}

.section-title {
  font-family: var(--font-body);
  font-size: var(--font-size-12);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-3);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--spacing-3);
}

.reading-guide p {
  color: var(--color-text-2);
  margin-bottom: var(--spacing-3);
}

.guide-list {
  list-style: none;
  margin-bottom: var(--spacing-3);
}

.guide-list li {
  position: relative;
  padding-left: var(--spacing-4);
  color: var(--color-text-2);
  margin-bottom: var(--spacing-1);
}

.guide-list li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--color-text-3);
}

.guide-note {
  font-size: var(--font-size-13);
  color: var(--color-text-3);
  font-style: italic;
}

/* ============================================================================
 * CASE STUDIES SPLIT PANEL
 * ============================================================================ */

.case-studies-panel {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 0;
  background: var(--color-surface);
  border: 1px solid var(--color-border-2);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.case-divider {
  width: 1px;
  background: var(--color-border-2);
  position: relative;
}

.case-divider::before {
  content: 'vs';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: var(--color-surface);
  padding: var(--spacing-2) var(--spacing-1);
  font-size: var(--font-size-11);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-3);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* ============================================================================
 * CASE STUDY - Individual panel
 * ============================================================================ */

.case-study {
  display: flex;
  flex-direction: column;
  padding: var(--spacing-6);
}

.case-header {
  margin-bottom: var(--spacing-5);
  padding-bottom: var(--spacing-3);
  border-bottom: 1px solid var(--color-border-2);
}

.case-label {
  display: block;
  font-size: var(--font-size-11);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--spacing-1);
}

.case-title {
  font-family: var(--font-display);
  font-size: var(--font-size-20);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
}

.case-section {
  margin-bottom: var(--spacing-5);
}

.case-section:last-child {
  margin-bottom: 0;
}

.case-section-title {
  font-family: var(--font-body);
  font-size: var(--font-size-12);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-3);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--spacing-2);
}

.case-section p {
  color: var(--color-text-2);
  margin-bottom: var(--spacing-2);
}

.case-section p:last-child {
  margin-bottom: 0;
}

.case-section strong {
  color: var(--color-text-2);
  font-weight: var(--font-weight-normal);
}

/* Alignment list */
.alignment-list {
  list-style: none;
}

.alignment-list li {
  position: relative;
  padding-left: var(--spacing-4);
  color: var(--color-text-2);
  margin-bottom: var(--spacing-1);
  font-size: var(--font-size-13);
}

.alignment-list li::before {
  content: '·';
  position: absolute;
  left: var(--spacing-1);
  color: var(--color-text-3);
  font-weight: bold;
}

/* Properties - Detailed view */
.case-section--properties {
  flex: 1;
}

.property-detail {
  margin-bottom: var(--spacing-5);
  padding: var(--spacing-4);
  background: var(--color-surface-elevated);
  border-radius: var(--radius-sm);
}

.property-detail:last-child {
  margin-bottom: 0;
}

.property-detail-title {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  font-family: var(--font-body);
  font-size: var(--font-size-13);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  margin-bottom: var(--spacing-2);
}

.property-icon {
  width: var(--icon-size-14);
  height: var(--icon-size-14);
  color: var(--color-text-3);
}

.property-detail p {
  color: var(--color-text-2);
  font-size: var(--font-size-13);
  margin-bottom: var(--spacing-2);
}

.property-detail p:last-child {
  margin-bottom: 0;
}

.detail-list {
  list-style: none;
  margin-bottom: var(--spacing-2);
  margin-left: 0;
}

.detail-list:last-child {
  margin-bottom: 0;
}

.detail-list li {
  position: relative;
  padding-left: var(--spacing-4);
  color: var(--color-text-2);
  margin-bottom: var(--spacing-1);
  font-size: var(--font-size-13);
}

.detail-list li::before {
  content: '·';
  position: absolute;
  left: var(--spacing-1);
  color: var(--color-text-3);
  font-weight: bold;
}

/* For ordered lists within property details */
ol.detail-list {
  counter-reset: item;
}

ol.detail-list li::before {
  content: counter(item) '.';
  counter-increment: item;
  font-weight: var(--font-weight-medium);
}

/* Resolution section */
.case-section--resolution {
  margin-top: auto;
  padding-top: var(--spacing-4);
  border-top: 1px solid var(--color-border-2);
}

.case-section--resolution p {
  color: var(--color-text-3);
  font-style: italic;
}

/* ============================================================================
 * COMPARATIVE SYNTHESIS
 * ============================================================================ */

.comparative-synthesis {
  max-width: 100%;
  padding: var(--spacing-6) 0;
  border-top: 1px solid var(--color-border-2);
  margin-top: var(--spacing-6);
}

.comparative-synthesis .section-title {
  text-align: center;
  margin-bottom: var(--spacing-5);
}

.subsection-title {
  font-family: var(--font-body);
  font-size: var(--font-size-14);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-2);
  margin-bottom: var(--spacing-3);
  margin-top: var(--spacing-4);
}

.subsection-title:first-of-type {
  margin-top: 0;
}

.comparative-synthesis p {
  color: var(--color-text-2);
  margin-bottom: var(--spacing-3);
}

.comparison-table {
  overflow-x: auto;
  margin-bottom: var(--spacing-5);
}

.comparison-table table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--font-size-13);
}

.comparison-table thead {
  border-bottom: 2px solid var(--color-border);
}

.comparison-table th {
  padding: var(--spacing-2) var(--spacing-3);
  text-align: left;
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-2);
  text-transform: uppercase;
  font-size: var(--font-size-11);
  letter-spacing: 0.05em;
}

.comparison-table td {
  padding: var(--spacing-3);
  color: var(--color-text-2);
  border-bottom: 1px solid var(--color-border-2);
}

.comparison-table tbody tr:hover {
  background: var(--color-surface-elevated);
}

.comparison-table td:first-child {
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
}

.convergence-list {
  list-style: none;
  counter-reset: convergence;
  margin-left: 0;
}

.convergence-list li {
  position: relative;
  padding-left: var(--spacing-6);
  color: var(--color-text-2);
  margin-bottom: var(--spacing-2);
  counter-increment: convergence;
}

.convergence-list li::before {
  content: counter(convergence);
  position: absolute;
  left: 0;
  width: var(--spacing-5);
  height: var(--spacing-5);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-surface-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  color: var(--color-text-3);
  font-size: var(--font-size-11);
  font-weight: var(--font-weight-medium);
}

/* ============================================================================
 * CONCLUSION - Mirrors premise
 * ============================================================================ */

.conclusion {
  max-width: 100%;
  width: 100%;
  padding: var(--spacing-4) var(--spacing-8);
  text-align: center;
  margin-top: var(--spacing-6);
  border-top: 1px solid var(--color-border-2);
}

.conclusion p {
  color: var(--color-text-2);
  font-size: var(--font-size-14);
  margin-bottom: var(--spacing-2);
}

.conclusion p:last-child {
  margin-bottom: 0;
}

/* Footer handled by shared/layout.css */

/* ============================================================================
 * ANIMATIONS - Subtle, suggests reading
 * ============================================================================ */

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

.page-header {
  animation: fadeIn var(--duration-slow) var(--ease-out) forwards;
}

.premise {
  opacity: 0;
  animation: fadeIn var(--duration-slow) var(--ease-out) 100ms forwards;
}

.reading-guide {
  opacity: 0;
  animation: fadeIn var(--duration-slow) var(--ease-out) 150ms forwards;
}

.case-study:nth-of-type(1) {
  opacity: 0;
  animation: fadeIn var(--duration-slow) var(--ease-out) 200ms forwards;
}

.case-study:nth-of-type(2) {
  opacity: 0;
  animation: fadeIn var(--duration-slow) var(--ease-out) 300ms forwards;
}

.conclusion {
  opacity: 0;
  animation: fadeIn var(--duration-slow) var(--ease-out) 400ms forwards;
}

/* ============================================================================
 * RESPONSIVE
 * ============================================================================ */

@media (max-width: 900px) {
  .case-studies-panel {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto auto;
  }
  
  .case-divider {
    width: 100%;
    height: 1px;
  }
  
  .case-divider::before {
    top: 0;
    padding: var(--spacing-1) var(--spacing-3);
  }
  
  .properties-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
}