/* ============================================================
   RVK Digital — case-study.css
   Case study page-specific layout only. Brand tokens (colors,
   fonts, dark-theme overrides) now live in global.css — this
   file no longer redeclares them.
   ============================================================ */

/* ── PAGE HEADER OVERRIDE ──────────────────────────────────
   This page doesn't use the dark cover-image header from
   pages.css — it has its own hero. Nav sits on transparent/cream.
   ─────────────────────────────────────────────────────────── */
body.page-case-study {
  background: var(--bg);
}

body.page-case-study #site-nav {
  background: var(--nav-bg);
  border-bottom: 1px solid var(--border);
}

body.page-case-study .nav-cta {
  background: var(--accent);
  color: #fff !important;
}

body.page-case-study .nav-cta:hover {
  background: var(--accent-text) !important;
}

body.page-case-study .nav-links a:hover,
body.page-case-study .nav-links a.active {
  border-bottom-color: var(--accent);
}

/* ── SIGNATURE ITALIC ───────────────────────────────────────
   The one recurring device on this page: a serif italic used
   only for the phrase that names the outcome — the "so what"
   of each section. Everything else stays quiet and disciplined.
   ─────────────────────────────────────────────────────────── */
.cs-italic {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 500;
  color: var(--accent-text);
}

[data-theme="dark"] .cs-italic {
  color: var(--darkSalmon);
}

/* ── HERO ───────────────────────────────────────────────── */
.cs-hero {
  padding: 9.5rem 0 0;
}

.cs-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 1.75rem;
}

.cs-hero-badge::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}

.cs-hero h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.25rem, 4.6vw, 3.5rem);
  line-height: 1.12;
  letter-spacing: -0.03em;
  color: var(--text-1);
  max-width: 820px;
  margin-bottom: 1.5rem;
}

.cs-hero .lead {
  font-size: 1.125rem;
  font-weight: 300;
  color: var(--text-3);
  max-width: 620px;
  line-height: 1.8;
  margin-bottom: 2.25rem;
}

.cs-meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 2.5rem;
  padding: 1.75rem 0 2.5rem;
  border-top: 1px solid var(--border);
  margin-top: 0.5rem;
}

.cs-meta-item .cs-meta-label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 0.375rem;
}

.cs-meta-item .cs-meta-value {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-1);
}

/* External "visit live site" link — reuses the meta-value slot so
   it's consistent with Client / Services / Stack, but styled as a
   clickable accent link rather than plain text. */
.cs-meta-item .cs-meta-value a {
  color: var(--accent-text);
  text-decoration: none;
  border-bottom: 1px solid var(--border-md);
  transition: border-color var(--t-fast), color var(--t-fast);
}
.cs-meta-item .cs-meta-value a:hover {
  color: var(--accent);
  border-color: var(--accent);
}
[data-theme="dark"] .cs-meta-item .cs-meta-value a {
  color: var(--darkSalmon);
}

.cs-hero-actions {
  display: flex;
  gap: 0.875rem;
  flex-wrap: wrap;
  margin-bottom: 3rem;
}

/* Staggered fade-up entrance, matching the homepage hero and
   other page headers. Keyframe (fade-up-in) is shared sitewide
   via global.css. .cs-hero has 5 direct children (badge, h1,
   lead, meta-row, actions), so this scopes to the hero only —
   not every .container on the page. */
.cs-hero > .container > * {
  opacity: 0;
  transform: translateY(14px);
  animation: fade-up-in 0.55s ease forwards;
}
.cs-hero > .container > *:nth-child(1) { animation-delay: 0.05s; }
.cs-hero > .container > *:nth-child(2) { animation-delay: 0.15s; }
.cs-hero > .container > *:nth-child(3) { animation-delay: 0.25s; }
.cs-hero > .container > *:nth-child(4) { animation-delay: 0.35s; }
.cs-hero > .container > *:nth-child(5) { animation-delay: 0.45s; }

@media (prefers-reduced-motion: reduce) {
  .cs-hero > .container > * {
    animation: none;
    opacity: 1;
    transform: none;
  }
}

/* ── STAT STRIP ─────────────────────────────────────────── */
.cs-stats {
  background: var(--surface-2);
  padding: 2.75rem 0;
}

.cs-stats-inner {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}

/* For case studies with fewer than 4 stats */
.cs-stats-inner.cols-3 {
  grid-template-columns: repeat(3, 1fr);
}

.cs-stat-num {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 600;
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  color: var(--accent-text);
  line-height: 1;
  margin-bottom: 0.5rem;
}

[data-theme="dark"] .cs-stat-num {
  color: var(--darkSalmon);
}

.cs-stat-label {
  font-size: 0.8125rem;
  color: var(--text-2);
  font-weight: 400;
  line-height: 1.5;
}

/* ── BRIEF (two-column) ─────────────────────────────────── */
.cs-brief {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4.5rem;
  align-items: center;
  padding-top: 6.5rem;
  padding-bottom: 6.5rem;
}

.cs-brief-text h2 {
  margin-bottom: 1.25rem;
}

.cs-brief-text p {
  margin-bottom: 1.125rem;
}

/* Browser mockup panel */
.cs-mockup {
  background: var(--dark);
  border-radius: var(--r-xl);
  padding: 1.5rem;
  position: relative;
  overflow: hidden;
}

.cs-mockup::before {
  content: '';
  position: absolute;
  top: -60px;
  right: -60px;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: var(--dark-panel-2);
  opacity: 0.6;
}

.cs-mockup-bar {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 12px;
}

.cs-mockup-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: rgba(217, 233, 233, 0.18);
}

.cs-mockup-dot.accent {
  background: var(--darkSalmon);
}

.cs-mockup-url {
  flex: 1;
  height: 12px;
  background: rgba(217, 233, 233, 0.08);
  border-radius: 4px;
  margin-left: 8px;
  font-size: 0.65rem;
  color: rgba(217, 233, 233, 0.4);
  display: flex;
  align-items: center;
  padding: 0 8px;
}

.cs-mockup-body {
  position: relative;
  z-index: 1;
  background: rgba(217, 233, 233, 0.05);
  border-radius: 10px;
  padding: 1.25rem;
}

.cs-mockup-tags {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
  margin-top: 1rem;
}

.cs-mockup-tag {
  font-size: 0.75rem;
  color: rgba(217, 233, 233, 0.75);
  background: rgba(217, 233, 233, 0.06);
  border: 1px solid rgba(217, 233, 233, 0.1);
  border-radius: 6px;
  padding: 0.625rem 0.875rem;
  display: flex;
  align-items: center;
  gap: 8px;
}

.cs-mockup-tag .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--darkSalmon);
  flex-shrink: 0;
}

/* ── APPROACH (dark numbered list) ─────────────────────── */
.cs-approach {
  background: var(--dark);
  padding: 6rem 0;
}

.cs-approach h2,
.cs-approach .eyebrow {
  color: var(--light);
}

.cs-approach .eyebrow {
  color: var(--darkSalmon);
}

.cs-approach .eyebrow::before {
  background: var(--darkSalmon);
}

.cs-approach .section-intro {
  color: rgba(217, 233, 233, 0.72);
}

.cs-approach-list {
  border-top: 1px solid rgba(217, 233, 233, 0.1);
  margin-top: 2.5rem;
}

.cs-approach-item {
  display: grid;
  grid-template-columns: 60px 1fr 1.4fr;
  gap: 2rem;
  align-items: baseline;
  padding: 1.75rem 0;
  border-bottom: 1px solid rgba(217, 233, 233, 0.1);
}

.cs-approach-num {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1.125rem;
  color: rgba(217, 233, 233, 0.6);
}

.cs-approach-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.0625rem;
  color: var(--light);
  letter-spacing: -0.01em;
}

.cs-approach-desc {
  font-size: 0.9375rem;
  color: rgba(217, 233, 233, 0.7);
  font-weight: 300;
  line-height: 1.7;
}

/* ── CHALLENGE ──────────────────────────────────────────── */
.cs-challenge {
  padding: 6.5rem 0;
}

.cs-challenge p {
  max-width: 680px;
  margin-bottom: 1.25rem;
}

.cs-callout {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: var(--r-md);
  padding: 1.5rem 1.75rem;
  max-width: 680px;
  margin: 1.75rem 0 2.25rem;
}

.cs-callout-label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--accent-text);
  margin-bottom: 0.5rem;
}

[data-theme="dark"] .cs-callout-label {
  color: var(--darkSalmon);
}

.cs-callout p {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--text-2);
}

/* ── RESULT ─────────────────────────────────────────────── */
.cs-result {
  background: var(--surface);
  padding: 6.5rem 0;
}

.cs-result-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 720px;
  margin: 2rem 0 2rem;
}

.cs-result-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.875rem;
  font-size: 0.9375rem;
  color: var(--text-1);
  line-height: 1.7;
}

.cs-result-check {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--accent-pale);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
}

.cs-result-check svg {
  width: 11px;
  height: 11px;
  stroke: var(--accent-text);
  stroke-width: 2.5;
  fill: none;
}

[data-theme="dark"] .cs-result-check svg {
  stroke: var(--darkSalmon);
}

.cs-result-note {
  font-size: 0.875rem;
  color: var(--text-3);
  max-width: 620px;
}

/* ── TAKEAWAY (solid terracotta band) ──────────────────── */
.cs-takeaway {
  background: var(--darkSalmon);
  padding: 6rem 0;
}

.cs-takeaway-text {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 500;
  font-size: clamp(1.375rem, 2.6vw, 1.875rem);
  line-height: 1.45;
  color: var(--darkJungleGreen);
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
}

/* ── FINAL CTA ──────────────────────────────────────────── */
.cs-final-cta {
  padding: 7.5rem 0;
  text-align: center;
}

.cs-final-cta .cs-final-label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 1.25rem;
}

.cs-final-cta h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.875rem, 4vw, 2.75rem);
  color: var(--text-1);
  margin-bottom: 1.5rem;
}

.cs-final-cta a.cs-email {
  display: inline-block;
  font-size: 1rem;
  color: var(--text-2);
  margin-bottom: 0.75rem;
  text-decoration: underline;
  text-decoration-color: var(--border-md);
  text-underline-offset: 4px;
}

.cs-final-note {
  font-size: 0.8125rem;
  color: var(--text-3);
}

.cs-final-actions {
  margin-top: 2rem;
}

/* ── FOOTER OVERRIDE ────────────────────────────────────── */
body.page-case-study #site-footer {
  background: var(--dark);
}

/* ── RESPONSIVE ─────────────────────────────────────────── */
@media (max-width: 900px) {
  .cs-brief {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .cs-stats-inner {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.75rem;
  }

  .cs-approach-item {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }

  .cs-meta-row {
    gap: 1.75rem;
  }
}

@media (max-width: 560px) {
  .cs-stats-inner {
    grid-template-columns: 1fr;
  }

  .cs-hero {
    padding-top: 7.5rem;
  }
}