/* ═════════════════════════════════════════════════════════════
   case-02.css — Logitech Design System case study.
   Extracted from inline <style> block on 2026-04-20.

   Depends on: global.css, case-study.css, lightbox.css.
   Shared components used here but defined in case-study.css:
     · .phase-timeline (+ responsive mobile JS via phase-timeline.js)
     · .tv-frame / .tv-scanlines / .tv-noise / .tv-band / .tv-content
       (Signal Loss glitch layer via tv-glitch.js)
     · .image-placeholder.is-classified (corner brackets + pulse + red)
     · @keyframes classifiedPulse
   ═════════════════════════════════════════════════════════════ */

/* Case-02-specific tokens — shared tokens live in global.css */
:root {
  --logi-teal:      #00B8A9;
  --classified-red: #FF3333;
}

/* ═══ CASE STUDY OVERRIDES ═══ */
.case-study { position: relative; z-index: 1; }

/* ═══ BACK LINK ═══
   Nav is position:sticky, so back-link sits in normal document flow right
   below it. No calc(var(--nav-h) + 1rem) top padding — that added ~80px
   of empty space on mobile. */
.back-link {
  max-width: var(--cs-content-max); margin: 0 auto;
  padding: 1.25rem var(--cs-gutter) 0;
  font-family: var(--f-mono); font-size: 0.68rem;
  letter-spacing: 0.18em; text-transform: uppercase;
}
.back-link a { color: var(--accent-on-light); text-decoration: none; transition: color 0.2s; }
.back-link a:hover { color: var(--ink); }

/* ═══ HERO ═══ */
.cs-hero {
  display: grid;
  grid-template-columns: 55fr 45fr;
  gap: 5rem;
  align-items: start;
  padding: 2.5rem var(--cs-gutter) var(--cs-section-gap);
  max-width: var(--cs-content-max); margin: 0 auto;
  position: relative; overflow: hidden;
}
.cs-hero-content { display: flex; flex-direction: column; }
.cs-hero-visual {
  position: relative;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 0.5rem;
}
.cs-hero-mockup {
  width: 100%; aspect-ratio: 16 / 10;
  background: var(--ink-soft);
  border: 1px solid var(--ink);
  position: relative; overflow: hidden;
  transition: box-shadow 0.4s ease, border-color 0.4s ease;
}
.cs-hero-mockup::before {
  content: '';
  position: absolute; top: 12px; left: 12px;
  width: 20px; height: 20px;
  border-top: 1px solid var(--accent);
  border-left: 1px solid var(--accent);
  z-index: 2;
}
.cs-hero-mockup::after {
  content: '';
  position: absolute; bottom: 12px; right: 12px;
  width: 20px; height: 20px;
  border-bottom: 1px solid var(--accent);
  border-right: 1px solid var(--accent);
  z-index: 2;
}
.cs-hero-mockup:hover {
  border-color: rgba(255, 51, 51, 0.55);
  box-shadow: 0 0 32px rgba(255, 51, 51, 0.15),
              inset 0 0 40px rgba(255, 51, 51, 0.04);
}
.cs-mockup-label {
  position: absolute; bottom: -1.75rem; left: 0;
  font-family: var(--f-mono); font-size: 0.6rem;
  color: var(--ink-mid); letter-spacing: 0.15em;
  text-transform: uppercase;
}

/* Hero mockup — real screenshot with restricted overlay */
.cs-hero-mockup img {
  width: 100%; height: 100%;
  object-fit: cover; object-position: top;
  display: block;
}
.restricted-overlay {
  position: absolute; inset: 0;
  background: rgba(8, 8, 8, 0.82);
  backdrop-filter: blur(4px);
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 0.5rem; z-index: 2;
  overflow: hidden;
}
.restricted-badge {
  font-family: var(--f-mono); font-size: 0.7rem;
  padding: 0.5rem 1.25rem;
  border: 1px solid var(--classified-red);
  color: var(--classified-red);
  text-transform: uppercase; letter-spacing: 0.22em;
  animation: classifiedPulse 3s infinite;
  position: relative; z-index: 2;
}
.restricted-sub {
  font-family: var(--f-mono); font-size: 0.5rem;
  color: rgba(240, 237, 232, 0.72);
  letter-spacing: 0.15em; text-transform: uppercase;
  position: relative; z-index: 2;
}
@media (prefers-reduced-motion: reduce) {
  .restricted-badge { animation: none; }
}

.cs-hero-number {
  font-family: var(--f-mono); font-size: 0.68rem; color: var(--accent-on-light);
  letter-spacing: 0.18em; text-transform: uppercase;
  margin-bottom: var(--cs-element-gap); opacity: 0;
  animation: slideUp 0.8s var(--ease) 0.1s forwards;
}
.cs-hero-title {
  font-family: var(--f-display); font-size: clamp(2rem, 3.5vw, 3.5rem);
  font-weight: 700; line-height: 1.05; margin-bottom: var(--cs-element-gap);
  letter-spacing: 0.05em; text-transform: uppercase;
  opacity: 0; animation: slideUp 0.8s var(--ease) 0.2s forwards;
}
.cs-tags {
  display: flex; flex-wrap: wrap; gap: 0.75rem; margin-bottom: var(--cs-inner-gap);
  opacity: 0; animation: slideUp 0.8s var(--ease) 0.3s forwards;
}
.cs-tag {
  font-family: var(--f-mono); font-size: 0.62rem; padding: 0.5rem 1rem;
  border: 1px solid var(--ink); border-radius: 0;
  text-transform: uppercase; letter-spacing: 0.18em;
  transition: all 0.3s var(--ease);
}
.cs-tag:hover { background: var(--ink); color: var(--bg); }
.cs-hero-description {
  font-family: var(--f-body); font-size: 1rem; line-height: 1.8;
  font-weight: 300;
  margin-bottom: var(--cs-inner-gap); max-width: 600px;
  opacity: 0; animation: slideUp 0.8s var(--ease) 0.4s forwards;
}
.cs-hero-meta {
  display: grid; grid-template-columns: repeat(4, auto);
  justify-content: start;
  gap: 0.5rem 2.5rem;
  opacity: 0; animation: slideUp 0.8s var(--ease) 0.5s forwards;
}
.cs-meta-item { font-family: var(--f-mono); }
.cs-meta-label {
  color: var(--accent-on-light); text-transform: uppercase; letter-spacing: 0.18em;
  font-size: 0.58rem; margin-bottom: 0.35rem; display: block;
}
.cs-meta-value {
  color: var(--ink); font-size: 0.75rem; letter-spacing: 0.05em;
  white-space: nowrap;
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ═══ SECTIONS ═══ */
.cs-section {
  max-width: var(--cs-content-max); margin: 0 auto;
  padding: var(--cs-section-gap) var(--cs-gutter);
  position: relative;
}
.cs-section-label {
  position: absolute; left: 16px; top: 50%;
  translate: 0 -50%;
  font-family: var(--f-mono); font-size: 0.58rem;
  text-transform: uppercase; letter-spacing: 0.22em; color: var(--ink-dim);
  writing-mode: vertical-rl; transform: rotate(180deg);
  pointer-events: none;
}
/* Section-label accent modifier — for labels on content sections that
   need the accent colour (Context, Process, etc) instead of the default
   muted ink-dim. Replaces per-element inline style="color: var(--accent)". */
.cs-section-label.is-accent { color: var(--accent-on-light); }

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

/* overview: uses shared case-study.css dark component */

/* ═══ CONTEXT — SCALE PANEL ═══
   Generous vertical padding — dark sections need breathing room around
   the colour-shift transition. */
.scale-panel {
  background: var(--dark); color: var(--bg);
  margin: 0; padding: calc(var(--cs-section-gap) * 2) var(--cs-gutter);
}
.scale-inner { max-width: var(--cs-content-max); margin: 0 auto; }
.scale-title {
  font-family: var(--f-display); font-size: 2rem; font-weight: 700;
  color: var(--bg); margin-bottom: 0.5rem;
}
.scale-subtitle {
  font-family: var(--f-body); font-size: 1rem; line-height: 1.8;
  color: var(--ink-on-dark); margin-bottom: var(--cs-section-gap);
}

/* Discipline cards */
.discipline-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem; margin-bottom: var(--cs-section-gap);
}
.discipline-card {
  border: 1px solid rgba(240, 237, 232, 0.1);
  padding: 1.5rem; position: relative;
  transition: all 0.3s var(--ease);
  overflow: hidden;
}
.discipline-card::before {
  content: '';
  position: absolute; top: 0; left: 0;
  width: 3px; height: 100%;
  background: var(--accent);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 0.4s var(--ease);
}
.discipline-card:hover::before { transform: scaleY(1); }
.discipline-card:hover { border-color: rgba(0, 232, 122, 0.3); }
.discipline-icon {
  font-family: var(--f-mono); font-size: 0.6rem;
  color: var(--accent); letter-spacing: 0.18em;
  text-transform: uppercase; margin-bottom: 0.75rem;
}
.discipline-name {
  font-family: var(--f-display); font-size: 1.1rem;
  font-weight: 600; color: var(--bg); margin-bottom: 0.5rem;
}
.discipline-desc {
  font-family: var(--f-body); font-size: 0.8rem;
  color: var(--ink-dim); line-height: 1.6;
}

/* Stats row */
.scale-stats {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem; padding-top: var(--cs-inner-gap);
  border-top: 1px solid rgba(240, 237, 232, 0.1);
}
.scale-stat { text-align: center; }
.scale-stat-number {
  font-family: var(--f-display); font-size: 2.5rem;
  font-weight: 700; color: var(--accent); line-height: 1;
  margin-bottom: 0.35rem;
}
.scale-stat-label {
  font-family: var(--f-mono); font-size: 0.65rem;
  text-transform: uppercase; letter-spacing: 0.18em;
  color: var(--ink-dim);
}

/* ═══ PLATFORM SECTIONS ═══ */
.platform-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem; margin-top: var(--cs-inner-gap);
}
.platform-card {
  border: 1px solid rgba(240, 237, 232, 0.1);
  padding: 1.25rem; position: relative;
  transition: all 0.3s var(--ease);
}
.platform-card:hover { border-color: rgba(0, 232, 122, 0.3); }
.platform-card-name {
  font-family: var(--f-mono); font-size: 0.7rem;
  color: var(--accent); letter-spacing: 0.15em;
  text-transform: uppercase; margin-bottom: 0.5rem;
}
.platform-card-desc {
  font-family: var(--f-body); font-size: 0.8rem;
  color: var(--ink-dim); line-height: 1.5;
}

/* Portal architecture heading — mono eyebrow for the 8-section grid.
   Extracted from inline style on <h3> (was Group B residue). */
.portal-arch-heading {
  font-family: var(--f-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--accent);
  margin-bottom: 1.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid rgba(240, 237, 232, 0.1);
}

/* ═══ PROCESS ═══ */
.process-container { padding-left: 3rem; }
.process-step {
  display: grid; grid-template-columns: 200px 1fr; gap: var(--cs-inner-gap);
  margin-bottom: var(--cs-inner-gap); align-items: start;
  opacity: 0; transition: opacity 0.6s var(--ease);
}
.process-step.in { opacity: 1; }
.process-number {
  font-family: var(--f-display); font-size: 3rem; font-weight: 700;
  color: var(--accent-on-light); line-height: 1;
}
.process-title {
  font-family: var(--f-display); font-size: 1.5rem; font-weight: 600;
  margin-bottom: 1rem; letter-spacing: 0.05em; text-transform: uppercase;
}
.process-content p {
  font-size: 0.95rem; line-height: 1.8;
  margin-bottom: var(--cs-element-gap); font-weight: 300;
}
.process-content ul { list-style: none; margin-bottom: var(--cs-element-gap); }
.process-content ul li {
  font-size: 0.95rem; line-height: 1.8; padding-left: 1.5rem;
  position: relative; margin-bottom: 0.5rem;
}
.process-content ul li::before {
  content: '\2192'; position: absolute; left: 0;
  color: var(--accent-on-light); font-family: var(--f-mono);
}

/* Image-placeholder classified styling lives in case-study.css as
   `.image-placeholder.is-classified` modifier. Apply via class on markup. */

/* Callout */
.callout {
  background: var(--dark); color: var(--bg);
  padding: var(--cs-inner-gap); margin: var(--cs-element-gap) 0;
  border-left: 3px solid var(--accent);
}
.callout-label {
  font-family: var(--f-mono); font-size: 0.7rem;
  text-transform: uppercase; letter-spacing: 2px;
  color: var(--accent); margin-bottom: 0.75rem; display: block;
}
.callout p {
  font-size: 1rem; line-height: 1.8;
  color: var(--bg); font-weight: 300;
}

/* ═══ CLASSIFIED SECTION ═══
   Generous vertical padding — dark sections need breathing room around
   the colour-shift transition. */
.classified-section {
  background: var(--dark); color: var(--bg);
  margin: 0; padding: calc(var(--cs-section-gap) * 2) var(--cs-gutter);
  position: relative; overflow: hidden;
}
.classified-section::before {
  content: '';
  position: absolute; top: 0; left: 0; width: 100%; height: 100%;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 232, 122, 0.02) 2px,
    rgba(0, 232, 122, 0.02) 4px
  );
  pointer-events: none;
}
.classified-inner {
  max-width: var(--cs-content-max); margin: 0 auto;
  position: relative;
}

.classified-header {
  display: flex; align-items: center; gap: 1rem;
  margin-bottom: 0.5rem;
}
.classified-badge {
  font-family: var(--f-mono); font-size: 0.6rem;
  padding: 0.4rem 0.8rem;
  border: 1px solid var(--classified-red);
  color: var(--classified-red);
  text-transform: uppercase; letter-spacing: 0.18em;
  animation: classifiedPulse 3s infinite;
}
.classified-title {
  font-family: var(--f-display); font-size: 2rem; font-weight: 700;
  color: var(--bg); margin-bottom: var(--cs-inner-gap);
}
.classified-subtitle {
  font-family: var(--f-body); font-size: 1rem; line-height: 1.8;
  color: var(--ink-dim); margin-bottom: var(--cs-section-gap);
}

/* Classified cards grid — fixed 3 columns on desktop for a balanced 2x3
   layout with the 6 cards; falls back to 2 cols on tablet, 1 on mobile. */
.classified-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
@media (max-width: 1024px) {
  .classified-grid { grid-template-columns: repeat(2, 1fr); }
}
.classified-card {
  border: 1px solid rgba(255, 51, 51, 0.2);
  padding: 2rem; position: relative;
  overflow: hidden;
  transition: all 0.4s var(--ease);
}
.classified-card:hover {
  border-color: rgba(255, 51, 51, 0.5);
}
.classified-card::before {
  content: '';
  position: absolute; top: 0; left: 0;
  width: 100%; height: 100%;
  background: repeating-linear-gradient(
    45deg,
    transparent,
    transparent 10px,
    rgba(255, 51, 51, 0.03) 10px,
    rgba(255, 51, 51, 0.03) 20px
  );
  pointer-events: none;
}
.classified-card-status {
  font-family: var(--f-mono); font-size: 0.55rem;
  color: var(--classified-red); letter-spacing: 0.22em;
  text-transform: uppercase; margin-bottom: 1rem;
  display: flex; align-items: center; gap: 0.5rem;
}
.classified-card-status::before {
  content: '';
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--classified-red);
  animation: classifiedPulse 2s infinite;
}
.classified-card-title {
  font-family: var(--f-display); font-size: 1.1rem;
  font-weight: 600; color: var(--bg); margin-bottom: 0.75rem;
  position: relative;
}
.classified-card-body {
  font-family: var(--f-body); font-size: 0.85rem;
  color: var(--ink-dim); line-height: 1.6;
  position: relative;
}
.redacted {
  background: var(--ink-mid);
  color: transparent;
  user-select: none;
  border-radius: 2px;
  padding: 0 0.3rem;
}
.classified-card-footer {
  margin-top: 1.25rem; padding-top: 1rem;
  border-top: 1px solid rgba(255, 51, 51, 0.1);
  font-family: var(--f-mono); font-size: 0.55rem;
  color: var(--ink-dim); letter-spacing: 0.12em;
  text-transform: uppercase;
}

/* ═══ RESEARCH INSIGHTS ═══ */
.insights-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 1.5rem; padding-left: 3rem;
}
.insight-card {
  border: 1px solid var(--ink);
  padding: 1.75rem; position: relative;
  opacity: 0; transition: opacity 0.6s var(--ease);
}
.insight-card.in { opacity: 1; }
.insight-card::before {
  content: '\201C';
  position: absolute; top: 0.5rem; left: 1rem;
  font-family: var(--f-display); font-size: 3rem;
  color: var(--accent); opacity: 0.3; line-height: 1;
}
.insight-topic {
  font-family: var(--f-mono); font-size: 0.6rem;
  color: var(--accent); letter-spacing: 0.18em;
  text-transform: uppercase; margin-bottom: 0.75rem;
}
.insight-quote {
  font-family: var(--f-body); font-size: 0.95rem;
  font-style: italic; line-height: 1.7;
  color: var(--ink); margin-bottom: 0.75rem;
  padding-left: 0.5rem;
}
.insight-source {
  font-family: var(--f-mono); font-size: 0.6rem;
  color: var(--ink-dim); letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* ═══ THREE-PHASE TIMELINE ═══
   Lives in case-study.css as a shared component (extracted 2026-04-20
   alongside mobile-timeline fix). See .phase-timeline there. */

/* ═══ RESULTS ═══
   Section stays on the light page surface; the cards themselves are
   dark-themed (matching the reflection / classified card language used
   elsewhere in the case). Accent returns to bright --accent inside the
   dark cards — the glow earns its keep again. */
.results-container {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--cs-inner-gap); padding-left: 3rem;
}
.result-item {
  opacity: 0; transition: opacity 0.6s var(--ease);
  padding: var(--cs-inner-gap);
  background: var(--ink-soft);
  border: 1px solid rgba(240, 237, 232, 0.08);
  color: var(--bg);
}
.result-item.in { opacity: 1; }
.result-label {
  font-family: var(--f-mono); font-size: 0.7rem;
  text-transform: uppercase; letter-spacing: 2px;
  color: var(--accent); margin-bottom: 1rem;
}
.result-title {
  font-family: var(--f-display); font-size: 1.25rem;
  font-weight: 600; margin-bottom: 0.75rem;
  color: var(--bg);
}
.result-text {
  font-size: 0.95rem; line-height: 1.8;
  color: var(--ink-on-dark);
}

/* ═══ SECTION TITLE & INTRO ═══ */
.cs-section-title {
  font-family: var(--f-display); font-size: 2rem; font-weight: 700;
  margin-bottom: 0.5rem; padding-left: 3rem;
}
.cs-section-intro {
  font-family: var(--f-body); font-size: 1rem; line-height: 1.8;
  color: var(--ink-mid); margin-bottom: var(--cs-section-gap);
  padding-left: 3rem; font-weight: 300;
}

/* ═══ RESPONSIVE ═══ */
@media (max-width: 1024px) {
  .cs-hero { grid-template-columns: 1fr; gap: 2rem; }
  .cs-hero-visual { max-width: 600px; }
  .cs-hero-meta { grid-template-columns: repeat(2, auto); }
  .overview, .process-container, .insights-grid,
  .results-container, .reflection-grid { padding-left: 0; }
  .cs-section-label { display: none; }
  /* .phase-timeline tablet rule → case-study.css */
}
@media (max-width: 768px) {
  :root { --cs-gutter: 1.25rem; }
  .cs-hero { padding: 1.5rem var(--cs-gutter) var(--cs-section-gap); }
  .cs-hero-visual { display: none; }
  .cs-hero-title { font-size: clamp(1.5rem, 7vw, 2rem); }
  .cs-hero-description { max-width: 100%; font-size: 0.9rem; }
  .cs-hero-meta { grid-template-columns: 1fr 1fr; gap: 1rem; }
  .cs-meta-value { white-space: normal; font-size: 0.7rem; }
  .cs-tags { gap: 0.5rem; }
  .cs-tag {
    font-size: 0.55rem; padding: 0.4rem 0.75rem;
    letter-spacing: 0.12em;
  }
  .process-step { grid-template-columns: 1fr; }
  /* .phase-timeline mobile rule → case-study.css */
  .discipline-grid { grid-template-columns: 1fr; }
  .classified-grid { grid-template-columns: 1fr; }
  .insights-grid { grid-template-columns: 1fr; }
  .platform-grid { grid-template-columns: 1fr; }
  .cs-section-title,
  .cs-section-intro { padding-left: 0; }
}

/* ═══ DS DECODE & GLITCH EFFECT ═══ */
[data-decode] .char,
[data-glitch-only] .char {
  display: inline-block;
  transition: color 0.08s;
}
[data-decode] .char.glitch,
[data-glitch-only] .char.glitch {
  color: var(--accent);
}
[data-decode] .char.decoding,
[data-glitch-only] .char.decoding {
  color: var(--ink-mid, #4A4A4A);
}