/* style.css — design tokens + component styles */

/* ─── FONTS ─── */
/* Prata: high-contrast editorial serif for display */
/* DM Sans: clean humanist sans for body — warm, functional, readable */

/* ─── DESIGN TOKENS ─── */
:root, [data-theme='light'] {
  /* Type scale — fluid */
  --text-xs:   clamp(0.75rem,  0.7rem  + 0.25vw, 0.875rem);
  --text-sm:   clamp(0.875rem, 0.8rem  + 0.35vw, 1rem);
  --text-base: clamp(1rem,     0.95rem + 0.25vw, 1.125rem);
  --text-lg:   clamp(1.125rem, 1rem    + 0.75vw, 1.5rem);
  --text-xl:   clamp(1.5rem,   1.2rem  + 1.25vw, 2.25rem);
  --text-2xl:  clamp(2rem,     1.2rem  + 2.5vw,  3.5rem);
  --text-3xl:  clamp(2.5rem,   1rem    + 4vw,    5rem);
  --text-hero: clamp(3.5rem,   1rem    + 7vw,    9rem);

  /* Spacing */
  --space-1: 0.25rem; --space-2: 0.5rem;  --space-3: 0.75rem;
  --space-4: 1rem;    --space-5: 1.25rem; --space-6: 1.5rem;
  --space-8: 2rem;    --space-10: 2.5rem; --space-12: 3rem;
  --space-16: 4rem;   --space-20: 5rem;   --space-24: 6rem;
  --space-32: 8rem;

  /* Emily's palette — warm cream, terracotta, sage, near-black */
  --color-bg:              #FBF8F3;
  --color-surface:         #FBF8F3;
  --color-surface-2:       #FEFCF9;
  --color-surface-offset:  #EDE8E0;
  --color-surface-alt:     #E8E2D8;
  --color-divider:         #D8D2C8;
  --color-border:          #CCC6BA;

  --color-text:            #1C1A17;
  --color-text-muted:      #595450;
  --color-text-faint:      #6E6A66;
  --color-text-inverse:    #F7F3ED;

  /* Terracotta — primary accent */
  --color-primary:         #576B5C;
  --color-primary-hover:   #465A4B;
  --color-primary-active:  #374A3C;
  --color-primary-light:   #DDE8DF;

  /* Sage — secondary accent (new) */
  --color-sage:            #3D5244;
  --color-sage-hover:      #324438;
  --color-sage-light:      #D4E2D7;

  /* AI badge color */
  --color-ai:              #9E4E22;
  --color-ai-light:        #F2E0D4;

  /* Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1.25rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 3px oklch(0.2 0.02 60 / 0.06);
  --shadow-md: 0 4px 16px oklch(0.2 0.02 60 / 0.08);
  --shadow-lg: 0 12px 40px oklch(0.2 0.02 60 / 0.12);

  /* Transitions */
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);

  /* Content widths */
  --content-narrow: 640px;
  --content-default: 960px;
  --content-wide: 1200px;

  /* Fonts */
  --font-display: 'Prata', 'Georgia', serif;
  --font-body: 'DM Sans', 'Helvetica Neue', sans-serif;
}

[data-theme='dark'] {
  --color-bg:              #171412;
  --color-surface:         #1D1B18;
  --color-surface-2:       #22201C;
  --color-surface-offset:  #1A1815;
  --color-surface-alt:     #252320;
  --color-divider:         #2E2B27;
  --color-border:          #3A3733;

  --color-text:            #E8E4DE;
  --color-text-muted:      #8A8580;
  --color-text-faint:      #5A5753;
  --color-text-inverse:    #171412;

  --color-primary:         #D4784A;
  --color-primary-hover:   #E08A60;
  --color-primary-active:  #E89A75;
  --color-primary-light:   #3A2418;

  --color-sage:            #86A892;
  --color-sage-hover:      #9ABBA6;
  --color-sage-light:      #1E2E24;

  --color-ai:              #7AAAB8;
  --color-ai-light:        #1A2D35;

  --shadow-sm: 0 1px 3px oklch(0 0 0 / 0.2);
  --shadow-md: 0 4px 16px oklch(0 0 0 / 0.3);
  --shadow-lg: 0 12px 40px oklch(0 0 0 / 0.4);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg: #171412;
    --color-surface: #1D1B18;
    --color-surface-2: #22201C;
    --color-surface-offset: #1A1815;
    --color-surface-alt: #252320;
    --color-divider: #2E2B27;
    --color-border: #3A3733;
    --color-text: #E8E4DE;
    --color-text-muted: #8A8580;
    --color-text-faint: #5A5753;
    --color-text-inverse: #171412;
    --color-primary: #D4784A;
    --color-primary-hover: #E08A60;
    --color-primary-active: #E89A75;
    --color-primary-light: #3A2418;
    --color-sage: #86A892;
    --color-sage-hover: #9ABBA6;
    --color-sage-light: #1E2E24;
    --color-ai: #7AAAB8;
    --color-ai-light: #1A2D35;
  }
}

/* ─── GLOBAL LAYOUT ─── */
.container {
  width: 100%;
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: clamp(var(--space-6), 5vw, var(--space-16));
}
.container--narrow {
  max-width: var(--content-default);
}
.container--text {
  max-width: 720px;
}

/* ─── HEADER / NAV ─── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: oklch(from var(--color-bg) l c h / 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-divider);
  transition: box-shadow var(--transition-interactive);
}
.site-header.scrolled {
  box-shadow: var(--shadow-sm);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-4);
  gap: var(--space-8);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--color-text);
  flex-shrink: 0;
}
.nav-logo:hover { color: var(--color-primary); }

.nav-logo-mark {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
}

.nav-name {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  letter-spacing: 0;
  line-height: 1;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  list-style: none;
}

.nav-links a {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  text-decoration: none;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}
.nav-links a:hover { color: var(--color-text); }
.nav-links a.active { color: var(--color-primary); }

.nav-cta {
  font-size: var(--text-sm) !important;
  font-weight: 500 !important;
  color: var(--color-text-inverse) !important;
  background: var(--color-primary);
  padding: var(--space-2) var(--space-5);
  border-radius: var(--radius-full);
  text-decoration: none;
  transition: background var(--transition-interactive), transform var(--transition-interactive) !important;
}
.nav-cta:hover {
  background: var(--color-primary-hover) !important;
  transform: translateY(-1px);
  color: var(--color-text-inverse) !important;
}

.nav-controls {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.theme-toggle {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  cursor: pointer;
}
.theme-toggle:hover {
  background: var(--color-surface-offset);
  color: var(--color-text);
}

/* Mobile nav */
.nav-menu {
  display: none;
}
.nav-toggle {
  display: none;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  cursor: pointer;
}

@media (max-width: 768px) {
  .nav-toggle { display: flex; }
  .site-header .nav-links,
  .site-header .nav-cta { display: none; }
  .nav-menu {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: var(--color-bg);
    z-index: 200;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-8);
  }
  .nav-menu.open { display: flex; }
  .nav-links {
    flex-direction: column;
    align-items: center;
    gap: var(--space-6);
  }
  .nav-links a { font-size: var(--text-lg); }
  .nav-close {
    position: absolute;
    top: var(--space-6);
    right: var(--space-6);
    width: 40px; height: 40px;
    display: flex; align-items: center; justify-content: center;
    color: var(--color-text-muted);
    cursor: pointer;
    border-radius: var(--radius-md);
  }
  .nav-close:hover { background: var(--color-surface-offset); }
  .nav-cta { margin-top: var(--space-2); }
}

/* ─── FOOTER ─── */
.site-footer {
  background: var(--color-text);
  color: var(--color-text-inverse);
  padding-block: var(--space-12) var(--space-10);
}
.footer-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  align-items: start;
  margin-bottom: var(--space-10);
}
.footer-brand .nav-name {
  color: var(--color-text-inverse);
  font-size: var(--text-xl);
  margin-bottom: var(--space-3);
  display: block;
}
.footer-tagline {
  color: oklch(from var(--color-text-inverse) l c h / 0.6);
  font-size: var(--text-sm);
  font-family: var(--font-body);
  max-width: 32ch;
  line-height: 1.6;
}
.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  list-style: none;
  align-items: flex-end;
}
.footer-links a {
  color: oklch(from var(--color-text-inverse) l c h / 0.7);
  text-decoration: none;
  font-size: var(--text-sm);
  font-family: var(--font-body);
}
.footer-links a:hover { color: var(--color-text-inverse); }
.footer-bottom {
  border-top: 1px solid oklch(from var(--color-text-inverse) l c h / 0.15);
  padding-top: var(--space-6);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-4);
}
.footer-copy {
  font-size: var(--text-xs);
  color: oklch(from var(--color-text-inverse) l c h / 0.55);
  font-family: var(--font-body);
}
@media (max-width: 600px) {
  .footer-inner { grid-template-columns: 1fr; }
  .footer-links { align-items: flex-start; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}

/* ─── TAGS / BADGES ─── */
.tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  background: var(--color-surface-offset);
  color: var(--color-text-muted);
}
.tag--ai {
  background: var(--color-ai-light);
  color: var(--color-ai);
}
.tag--active {
  background: var(--color-sage-light);
  color: var(--color-sage);
}
.tag--primary {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

/* ─── BUTTONS ─── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-full);
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition:
    background var(--transition-interactive),
    color var(--transition-interactive),
    box-shadow var(--transition-interactive),
    transform var(--transition-interactive);
}
.btn:hover { transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn:active { transform: translateY(0); box-shadow: var(--shadow-sm); }

.btn--primary {
  background: var(--color-primary);
  color: var(--color-text-inverse);
}
.btn--primary:hover { background: var(--color-primary-hover); }

.btn--outline {
  background: transparent;
  color: var(--color-text);
  border: 1.5px solid var(--color-border);
}
.btn--outline:hover {
  background: var(--color-surface-offset);
  border-color: var(--color-text-muted);
}

.btn--ghost {
  background: transparent;
  color: var(--color-primary);
  padding-inline: var(--space-2);
}
.btn--ghost:hover { background: var(--color-primary-light); }

/* ─── CASE STUDY LAYOUT ─── */
.case-hero {
  padding-block: clamp(var(--space-16), 10vw, var(--space-32));
  border-bottom: 1px solid var(--color-divider);
}

.case-hero-tag {
  margin-bottom: var(--space-5);
}

.case-title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 600;
  letter-spacing: 0;
  line-height: 1.25;
  color: var(--color-text);
  margin-bottom: var(--space-6);
  max-width: 32ch;
}

.case-tagline {
  font-family: var(--font-body);
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 60ch;
  line-height: 1.6;
  margin-bottom: var(--space-8);
  font-style: italic;
}

.case-meta-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: var(--space-6);
  padding-block: var(--space-8);
  border-top: 1px solid var(--color-divider);
  border-bottom: 1px solid var(--color-divider);
}
.meta-item label {
  display: block;
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  margin-bottom: var(--space-2);
}
.meta-item span {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.5;
}

/* Case study body layout: sticky sidebar + main */
.case-body {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: var(--space-16);
  align-items: start;
  padding-block: var(--space-16);
}

.case-sidebar {
  position: sticky;
  top: calc(var(--space-16) + 60px);
}
.case-sidebar nav {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}
.case-sidebar a {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--color-text-faint);
  text-decoration: none;
  padding: var(--space-2) var(--space-3);
  border-left: 2px solid transparent;
  transition: all var(--transition-interactive);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}
.case-sidebar a:hover {
  color: var(--color-text);
  border-left-color: var(--color-border);
  background: var(--color-surface-offset);
}
.case-sidebar a.active {
  color: var(--color-primary);
  border-left-color: var(--color-primary);
  background: var(--color-primary-light);
}

.case-content section {
  margin-bottom: var(--space-16);
  scroll-margin-top: calc(var(--space-16) + 60px);
}
.case-content h2 {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 600;
  letter-spacing: 0;
  color: var(--color-text);
  margin-bottom: var(--space-6);
}
.case-content h3 {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-3);
  margin-top: var(--space-8);
  letter-spacing: 0.01em;
}
.case-content p {
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.75;
  margin-bottom: var(--space-5);
}

.case-image {
  width: 100%;
  border-radius: var(--radius-lg);
  background: var(--color-surface-offset);
  overflow: hidden;
  margin-block: var(--space-8);
}
.case-image img {
  width: 100%;
  height: auto;
  display: block;
}
.case-image figcaption {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  padding: var(--space-3) var(--space-4);
  border-top: 1px solid var(--color-divider);
}

.case-image-placeholder {
  width: 100%;
  aspect-ratio: 16/9;
  background: var(--color-surface-alt);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: var(--space-3);
  color: var(--color-text-faint);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  text-align: center;
  padding: var(--space-8);
  margin-block: var(--space-8);
  border: 2px dashed var(--color-border);
}

.pull-quote {
  border-left: 3px solid var(--color-primary);
  padding: var(--space-6) var(--space-8);
  background: var(--color-primary-light);
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
  margin-block: var(--space-8);
}
.pull-quote p {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-style: italic;
  color: var(--color-text) !important;
  line-height: 1.5;
  margin: 0;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-4);
  margin-block: var(--space-8);
}
.metric-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  text-align: center;
}
.metric-number {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-primary);
  display: block;
  line-height: 1;
  margin-bottom: var(--space-2);
}
.metric-label {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: 1.4;
}
.metric-target {
  font-size: var(--text-xs);
  color: var(--color-sage);
  font-weight: 500;
  display: block;
  margin-top: var(--space-1);
}

.outcomes-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.outcomes-list li {
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.6;
  padding-left: var(--space-6);
  position: relative;
  max-width: none;
}
.outcomes-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-primary);
}

.ai-callout {
  background: var(--color-ai-light);
  border: 1px solid var(--color-ai);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  margin-block: var(--space-8);
}
.ai-callout-label {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-ai);
  margin-bottom: var(--space-2);
}
.ai-callout p {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
  margin: 0;
  max-width: none;
}

/* Password gate */
.password-gate {
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-16);
}
.password-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-12);
  max-width: 440px;
  width: 100%;
  text-align: center;
}
.password-card h2 {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: var(--color-text);
  margin-bottom: var(--space-3);
}
.password-card p {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-6);
  max-width: none;
}
.password-input-group {
  display: flex;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}
.password-input {
  flex: 1;
  padding: var(--space-3) var(--space-4);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--color-text);
}
.password-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}
.password-error {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  color: #B85C2E;
  display: none;
}

/* Case prev/next nav */
.case-nav {
  border-top: 1px solid var(--color-divider);
  padding-block: var(--space-12);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
}
.case-nav-item {
  text-decoration: none;
  color: var(--color-text);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-6);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition-interactive);
}
.case-nav-item:hover {
  border-color: var(--color-primary);
  background: var(--color-surface);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.case-nav-dir {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  font-weight: 500;
}
.case-nav-title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.2;
}
.case-nav-item--next { text-align: right; }

@media (max-width: 768px) {
  .case-body {
    grid-template-columns: 1fr;
    padding-block: var(--space-10);
    gap: var(--space-10);
  }
  .case-sidebar { display: none; }
  .case-nav { grid-template-columns: 1fr; }
  .case-nav-item--next { text-align: left; }
}

/* ─── SCROLL REVEAL ─── */
.fade-in {
  opacity: 1;
}
@supports (animation-timeline: scroll()) {
  .fade-in {
    opacity: 0;
    animation: reveal-fade linear both;
    animation-timeline: view();
    animation-range: entry 0% entry 80%;
  }
}
@keyframes reveal-fade {
  to { opacity: 1; }
}

/* ─── PAGE TRANSITIONS ─── */
@view-transition { navigation: auto; }
::view-transition-old(root) { animation: vt-out 0.2s cubic-bezier(0.4, 0, 1, 1); }
::view-transition-new(root) { animation: vt-in 0.3s cubic-bezier(0.16, 1, 0.3, 1); }
@keyframes vt-out { to { opacity: 0; } }
@keyframes vt-in { from { opacity: 0; } }

/* ─── UTILITY ─── */
.text-display {
  font-family: var(--font-display);
}
.divider {
  width: 48px;
  height: 2px;
  background: var(--color-primary);
  border: none;
  border-radius: var(--radius-full);
  margin-block: var(--space-6);
}

/* ─── LIGHTBOX ────────────────────────────────────────────── */
.lightbox-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(28, 26, 23, 0.92);
  align-items: center;
  justify-content: center;
  padding: var(--space-6);
  cursor: zoom-out;
}
.lightbox-overlay.open {
  display: flex;
}
.lightbox-inner {
  position: relative;
  max-width: min(92vw, 1200px);
  max-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
}
.lightbox-img {
  max-width: 100%;
  max-height: 90vh;
  width: auto;
  height: auto;
  object-fit: contain;
  border-radius: var(--radius-lg);
  box-shadow: 0 24px 80px rgba(0,0,0,0.6);
  display: block;
  cursor: default;
}
.lightbox-close {
  position: fixed;
  top: var(--space-5);
  right: var(--space-5);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.2);
  color: #fff;
  font-size: 1.25rem;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s;
  backdrop-filter: blur(4px);
}
.lightbox-close:hover {
  background: rgba(255,255,255,0.22);
}
.lightbox-close:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 2px;
}

/* Make case-image figures look clickable */
.case-image {
  cursor: zoom-in;
}
.case-image img {
  transition: opacity 0.15s;
}
.case-image:hover img {
  opacity: 0.88;
}