/* ============================================================
   ZYMA SYSTEMS — case-study.css
   Extends styles.css — do not import standalone
   ============================================================ */

/* ── Breadcrumb ── */
.cs-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--white-dim);
  margin-bottom: 48px;
  padding-top: calc(var(--nav-h) + 40px);
}
.cs-breadcrumb a {
  color: var(--white-dim);
  transition: color var(--transition);
}
.cs-breadcrumb a:hover { color: var(--orange); }
.cs-breadcrumb-sep { color: var(--border2); }
.cs-breadcrumb-active { color: var(--orange); }

/* ── Hero Section ── */
.cs-hero-section {
  padding-bottom: 0;
  border-bottom: 1px solid var(--border);
  background: var(--black);
  position: relative;
  overflow: hidden;
}
.cs-hero-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 50% 70% at 70% 40%, rgba(232,137,12,.05) 0%, transparent 70%);
  pointer-events: none;
}

.cs-hero-grid {
  display: grid;
  grid-template-columns: 1fr 400px;
  gap: 64px;
  align-items: center;
  padding-bottom: 80px;
}

.cs-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 32px;
}
.cs-tag {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .12em;
  text-transform: uppercase;
  padding: 6px 14px;
  border: 1px solid var(--border2);
  border-radius: var(--radius);
  color: var(--white-dim);
  transition: border-color var(--transition), color var(--transition);
}
.cs-tag:hover { border-color: var(--orange); color: var(--orange); }

/* ── Client Card ── */
.cs-client-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
  position: relative;
  overflow: hidden;
  transition: border-color var(--transition);
}
.cs-client-card:hover { border-color: var(--border2); }

.cs-client-card-label {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 20px;
}
.cs-client-name {
  font-family: var(--head);
  font-size: 28px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .04em;
  line-height: 1.1;
  color: var(--white);
}
.cs-client-reg {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--white-dim);
  margin-top: 4px;
  letter-spacing: .08em;
}
.cs-client-divider {
  height: 1px;
  background: var(--border);
  margin: 24px 0;
}
.cs-client-meta-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.cs-client-meta-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.cs-client-meta-label {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--white-dim);
}
.cs-client-meta-val {
  font-size: 13px;
  color: var(--white);
  font-weight: 500;
}
.cs-client-meta-link {
  font-size: 12px;
  color: var(--orange);
  transition: opacity var(--transition);
}
.cs-client-meta-link:hover { opacity: .75; }

.cs-client-watermark {
  font-family: var(--head);
  font-size: 96px;
  font-weight: 900;
  color: var(--white);
  opacity: .03;
  position: absolute;
  right: -8px;
  bottom: -20px;
  line-height: 1;
  user-select: none;
  pointer-events: none;
  letter-spacing: .04em;
}

/* ── Metrics Bar ── */
.cs-metrics-bar {
  padding: 48px 0;
  border-bottom: 1px solid var(--border);
  background: var(--dark);
}
.cs-metrics-grid {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.cs-metric {
  flex: 1;
  text-align: center;
}
.cs-metric-divider {
  width: 1px;
  height: 48px;
  background: var(--border);
  flex-shrink: 0;
}

/* ── Body Layout ── */
.cs-body-section {
  padding: 80px 0 100px;
}
.cs-layout {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 64px;
  align-items: start;
}

/* ── Sticky TOC ── */
.cs-toc {
  position: sticky;
  top: calc(var(--nav-h) + 24px);
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.cs-toc-label {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 12px;
}
.cs-toc nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-bottom: 24px;
}
.cs-toc-cta { margin-top: 8px; }

/* ── Content Sections ── */
.cs-content { min-width: 0; }
.cs-section {
  padding-bottom: 64px;
  margin-bottom: 64px;
  border-bottom: 1px solid var(--border);
}
.cs-section:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.cs-section-header {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 28px;
}
.cs-section-num {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--orange);
  letter-spacing: .15em;
  flex-shrink: 0;
}
.cs-section-header h2 {
  font-family: var(--head);
  font-size: 32px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .04em;
  padding-top: calc(var(--nav-h) + 16px);
  margin-top: calc(-1 * (var(--nav-h) + 16px));
}

.cs-section p {
  font-size: 14px;
  color: var(--white-dim);
  line-height: 1.8;
  margin-bottom: 20px;
  max-width: 680px;
}
.cs-section p:last-child { margin-bottom: 0; }

/* ── Callout ── */
.cs-callout {
  display: flex;
  gap: 16px;
  background: var(--orange-bg);
  border: 1px solid rgba(232,137,12,.2);
  border-left: 3px solid var(--orange);
  border-radius: var(--radius);
  padding: 20px 24px;
  margin: 28px 0;
}
.cs-callout-icon {
  font-size: 18px;
  flex-shrink: 0;
  margin-top: 2px;
}
.cs-callout p {
  margin: 0 !important;
  color: var(--white) !important;
  font-size: 13px !important;
}

/* ── Pain Grid ── */
.cs-pain-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-top: 28px;
}
.cs-pain-item {
  display: flex;
  gap: 16px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  transition: border-color var(--transition);
}
.cs-pain-item:hover { border-color: var(--border2); }
.cs-pain-icon { font-size: 20px; flex-shrink: 0; }
.cs-pain-item h4 {
  font-family: var(--head);
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .04em;
  margin-bottom: 6px;
  color: var(--white);
}
.cs-pain-item p {
  font-size: 12px !important;
  margin: 0 !important;
  line-height: 1.6 !important;
}

/* ── Features Grid ── */
.cs-features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin: 28px 0;
}
.cs-feature {
  display: flex;
  gap: 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  transition: border-color var(--transition), background var(--transition);
}
.cs-feature:hover { border-color: var(--orange); background: var(--card); }
.cs-feature-icon { font-size: 20px; flex-shrink: 0; }
.cs-feature-text h4 {
  font-family: var(--head);
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--white);
  margin-bottom: 6px;
}
.cs-feature-text p {
  font-size: 12px !important;
  margin: 0 !important;
  line-height: 1.6 !important;
}

/* ── Live link ── */
.cs-live-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--white-dim);
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 20px;
  margin-top: 8px;
  transition: border-color var(--transition);
}
.cs-live-link:hover { border-color: var(--orange); }
.cs-live-indicator {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green);
  flex-shrink: 0;
  animation: cs-pulse 2s ease-in-out infinite;
}
@keyframes cs-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: .4; }
}
.cs-live-link a {
  color: var(--orange);
  transition: opacity var(--transition);
}
.cs-live-link a:hover { opacity: .75; }
.cs-live-arrow { color: var(--orange); }

/* ── Timeline ── */
.cs-timeline {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-top: 28px;
}
.cs-tl-step {
  display: flex;
  gap: 24px;
}
.cs-tl-marker {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex-shrink: 0;
  width: 40px;
}
.cs-tl-num {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--card);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--orange);
  letter-spacing: .1em;
  flex-shrink: 0;
}
.cs-tl-line {
  flex: 1;
  width: 1px;
  background: var(--border);
  min-height: 40px;
  margin: 4px 0;
}
.cs-tl-body {
  padding-bottom: 40px;
  flex: 1;
}
.cs-tl-body h4 {
  font-family: var(--head);
  font-size: 16px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--white);
  margin-bottom: 8px;
  margin-top: 10px;
}
.cs-tl-body p {
  font-size: 13px !important;
  max-width: 560px !important;
}

/* ── Results Highlight ── */
.cs-results-highlight {
  background: var(--card);
  border: 1px solid var(--border);
  border-left: 4px solid var(--orange);
  border-radius: var(--radius);
  padding: 32px 36px;
  margin: 28px 0;
}
.cs-results-num {
  font-family: var(--head);
  font-size: clamp(40px, 6vw, 72px);
  font-weight: 900;
  color: var(--orange);
  line-height: 1;
  letter-spacing: -.01em;
}
.cs-results-label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--white-dim);
  margin: 8px 0 16px;
}
.cs-results-desc {
  font-size: 13px !important;
  margin: 0 !important;
  max-width: 560px !important;
}

/* ── Outcomes Grid ── */
.cs-outcomes-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-top: 24px;
}
.cs-outcome {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  color: var(--white-dim);
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color var(--transition), color var(--transition);
}
.cs-outcome:hover { border-color: var(--border2); color: var(--white); }
.cs-outcome-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--orange);
  flex-shrink: 0;
}

/* ── Phase Card ── */
.cs-phase-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-top: 28px;
  transition: border-color var(--transition);
}
.cs-phase-card:hover { border-color: var(--border2); }
.cs-phase-card-header {
  padding: 28px 32px 24px;
  border-bottom: 1px solid var(--border);
}
.cs-phase-badge {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 8px;
}
.cs-phase-title {
  font-family: var(--head);
  font-size: 22px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--white);
}
.cs-phase-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
}
.cs-phase-feature {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 18px 24px;
  font-size: 12px;
  color: var(--white-dim);
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition), color var(--transition);
}
.cs-phase-feature:hover { background: var(--card2); color: var(--white); }
.cs-phase-feature:nth-child(3n) { border-right: none; }
.cs-phase-feature:nth-last-child(-n+3) { border-bottom: none; }
.cs-phase-icon { font-size: 16px; flex-shrink: 0; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .cs-hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .cs-hero-right { max-width: 480px; }
  .cs-layout {
    grid-template-columns: 1fr;
  }
  .cs-toc {
    position: static;
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: start;
    gap: 16px;
  }
  .cs-toc nav { flex-direction: row; flex-wrap: wrap; gap: 4px; margin-bottom: 0; }
  .cs-toc-cta { grid-row: 1; grid-column: 2; }
}

@media (max-width: 768px) {
  .cs-breadcrumb { padding-top: calc(var(--nav-h) + 24px); margin-bottom: 32px; }
  .cs-pain-grid,
  .cs-features-grid,
  .cs-outcomes-grid { grid-template-columns: 1fr; }
  .cs-phase-features { grid-template-columns: repeat(2, 1fr); }
  .cs-phase-feature:nth-child(2n) { border-right: none; }
  .cs-phase-feature:nth-child(3n) { border-right: 1px solid var(--border); }
  .cs-phase-feature:nth-last-child(-n+2) { border-bottom: none; }
  .cs-phase-feature:nth-last-child(-n+3) { border-bottom: 1px solid var(--border); }
  .cs-metrics-grid { display: grid; grid-template-columns: 1fr 1fr; }
  .cs-metric-divider { display: none; }
  .cs-client-meta-grid { grid-template-columns: 1fr; }
  .cs-toc { display: flex; flex-direction: column; }
  .cs-toc nav { flex-direction: column; }
  .cs-toc-cta { width: 100%; }
  .cs-client-card { padding: 24px; }
}

@media (max-width: 480px) {
  .cs-phase-features { grid-template-columns: 1fr; }
  .cs-phase-feature { border-right: none !important; border-bottom: 1px solid var(--border) !important; }
  .cs-phase-feature:last-child { border-bottom: none !important; }
  .cs-metrics-grid { grid-template-columns: 1fr 1fr; }
}