/* ============================
   CASE STUDY — BREADCRUMB
   ============================ */
.breadcrumb {
  padding-top: 88px;
  background: var(--color-bg);
}

.breadcrumb-inner {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--color-muted);
  padding: 20px 0 0;
}

.breadcrumb-inner a {
  transition: color var(--transition-fast);
}

.breadcrumb-inner a:hover {
  color: var(--color-dark);
}

.breadcrumb-sep {
  color: var(--color-border);
}

/* ============================
   CASE STUDY — HERO
   ============================ */
.cs-hero {
  padding: 32px 0 72px;
}

.cs-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 28px;
  flex-wrap: wrap;
}

.cs-tag {
  display: inline-block;
  padding: 4px 12px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 100px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.cs-tag.highlight {
  background: #EEF8F0;
  border-color: #C8EDD0;
  color: #2A7A3A;
}

.cs-hero h1 {
  font-size: clamp(32px, 5.5vw, 56px);
  font-weight: 600;
  color: var(--color-dark);
  letter-spacing: -0.02em;
  margin-bottom: 24px;
  max-width: 820px;
}

.cs-hero-lead {
  font-size: 19px;
  color: var(--color-muted);
  line-height: 1.65;
  max-width: 600px;
  margin-bottom: 40px;
}

/* Info bar */
.cs-info-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.cs-info-item {
  padding: 20px 24px;
  border-right: 1px solid var(--color-border);
}

.cs-info-item:last-child {
  border-right: none;
}

.cs-info-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: 6px;
}

.cs-info-value {
  font-size: 15px;
  font-weight: 500;
  color: var(--color-dark);
}

/* Hero mockup image */
.cs-hero-img {
  width: 100%;
  height: 420px;
  background: #EEF3F7;
  border-radius: var(--radius-xl);
  margin-top: 56px;
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.notion-mockup {
  width: 78%;
  max-width: 700px;
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.mockup-bar {
  height: 36px;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0 14px;
}

.mockup-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.mockup-content {
  padding: 24px 28px;
}

.mockup-title-bar {
  height: 14px;
  background: var(--color-border);
  border-radius: 4px;
  width: 52%;
  margin-bottom: 20px;
}

.mockup-rows {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.mockup-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  background: var(--color-surface);
}

.mockup-status {
  padding: 3px 10px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 600;
  flex-shrink: 0;
}

.status-done   { background: #EEF8F0; color: #2A7A3A; }
.status-wip    { background: #FFF3E0; color: #B06000; }
.status-todo   { background: #F0F0EE; color: var(--color-muted); }
.status-review { background: #EEF0FF; color: #3730A3; }

.mockup-row-bar {
  flex: 1;
  height: 8px;
  background: var(--color-border);
  border-radius: 4px;
  overflow: hidden;
}

.mockup-row-fill {
  height: 100%;
  background: var(--color-accent);
  border-radius: 4px;
  opacity: 0.45;
}

/* ============================
   SECTION EYEBROW
   ============================ */
.section-eyebrow {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 20px;
}

.eyebrow-num {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-accent);
  letter-spacing: 0.06em;
  font-family: var(--font-sans);
}

.eyebrow-line {
  width: 32px;
  height: 1px;
  background: var(--color-border);
  flex-shrink: 0;
}

.eyebrow-label {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-muted);
  font-family: var(--font-sans);
}

/* ============================
   SEKCJA: WYZWANIE
   ============================ */
.cs-section {
  padding: 80px 0;
}

.cs-section-alt {
  padding: 80px 0;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.challenge-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.challenge-heading {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 600;
  color: var(--color-dark);
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}

.challenge-text {
  font-size: 16px;
  color: var(--color-muted);
  line-height: 1.8;
  margin-bottom: 16px;
}

/* Pain points */
.pain-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 32px;
}

.pain-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 18px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.pain-icon {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  background: #FEF2F2;
  border: 1px solid #FEC9C9;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  flex-shrink: 0;
  margin-top: 2px;
}

.pain-item p { font-size: 14px; color: var(--color-mid); line-height: 1.55; }
.pain-item strong { display: block; font-weight: 600; font-size: 14px; margin-bottom: 2px; color: var(--color-dark); }

/* Company card */
.company-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
}

.company-logo-placeholder {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: #EEF3F7;
  border: 1px solid var(--color-border);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 700;
  color: var(--color-mid);
}

.company-card h4 {
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
}

.company-card .company-type {
  font-size: 13px;
  color: var(--color-muted);
  margin-bottom: 20px;
}

.company-facts {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.company-fact {
  display: flex;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 14px;
}

.company-fact:last-child { border-bottom: none; }
.company-fact-label { color: var(--color-muted); }
.company-fact-value { font-weight: 500; color: var(--color-dark); }

/* ============================
   SEKCJA: ROZWIĄZANIE
   ============================ */
.solution-intro {
  max-width: 620px;
  margin-bottom: 0;
}

.solution-intro p {
  font-size: 17px;
  color: var(--color-muted);
  line-height: 1.75;
}

.solution-steps {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-top: 16px;
}

.solution-step {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 28px;
  align-items: start;
  padding: 36px 0;
  border-bottom: 1px solid var(--color-border);
}

.solution-step:last-child { border-bottom: none; }

.step-num-large {
  font-family: var(--font-serif);
  font-size: 40px;
  font-weight: 600;
  color: var(--color-border);
  line-height: 1;
  padding-top: 4px;
  user-select: none;
}

.step-content h4 {
  font-family: var(--font-sans);
  font-size: 18px;
  font-weight: 600;
  color: var(--color-dark);
  margin-bottom: 10px;
}

.step-content p {
  font-size: 15px;
  color: var(--color-muted);
  line-height: 1.75;
}

.step-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 14px;
}

.step-tag {
  padding: 4px 10px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 100px;
  font-size: 12px;
  color: var(--color-mid);
  font-weight: 500;
}

/* ============================
   SEKCJA: WYNIKI / METRYKI
   ============================ */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  background: var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 56px;
}

.metric-card {
  background: var(--color-bg);
  padding: 40px 32px;
  text-align: center;
}

.metric-number {
  font-family: var(--font-serif);
  font-size: clamp(44px, 6vw, 64px);
  font-weight: 700;
  color: var(--color-dark);
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: 10px;
}

.metric-number span {
  color: var(--color-accent);
}

.metric-label {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.5;
  max-width: 160px;
  margin: 0 auto;
}

/* Before / After comparison */
.comparison {
  display: grid;
  grid-template-columns: 1fr 48px 1fr;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.comparison-col { padding: 28px; }
.comparison-col.before { background: #FEF7F7; }
.comparison-col.after  { background: #F0FAF2; }

.comparison-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 16px;
  font-family: var(--font-sans);
}

.comparison-col.before .comparison-label { color: #C0392B; }
.comparison-col.after  .comparison-label { color: #27AE60; }

.comparison-divider {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg);
  border-left: 1px solid var(--color-border);
  border-right: 1px solid var(--color-border);
  color: var(--color-muted);
  font-size: 16px;
}

.comparison-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.comparison-list li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 14px;
  color: var(--color-mid);
  line-height: 1.5;
}

.comparison-list li::before {
  content: '';
  display: block;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 2px;
}

.comparison-col.before .comparison-list li::before { background: #FECACA; }
.comparison-col.after  .comparison-list li::before { background: #BBF7D0; }

/* ============================
   SEKCJA: CYTAT
   ============================ */
.quote-section {
  padding: 80px 0;
  background: var(--color-dark);
}

.quote-block {
  max-width: 740px;
  margin: 0 auto;
  padding: 0 24px;
}

.quote-text {
  font-family: var(--font-serif);
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 500;
  font-style: italic;
  color: #fff;
  line-height: 1.5;
  margin-bottom: 32px;
}

.quote-mark {
  display: block;
  font-size: 72px;
  line-height: 0.5;
  color: rgba(255,255,255,0.12);
  font-family: var(--font-serif);
  margin-bottom: 24px;
  user-select: none;
}

.quote-author {
  display: flex;
  align-items: center;
  gap: 14px;
}

.quote-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.2);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-size: 16px;
  font-weight: 600;
  color: rgba(255,255,255,0.7);
}

.quote-meta strong {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: #fff;
}

.quote-meta span {
  font-size: 13px;
  color: rgba(255,255,255,0.5);
}

/* ============================
   SEKCJA: GALERIA
   ============================ */
.gallery-intro {
  max-width: 560px;
  margin-bottom: 48px;
}

.gallery-intro p {
  font-size: 16px;
  color: var(--color-muted);
  line-height: 1.75;
  margin-top: 12px;
}

.gallery-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.gallery-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: box-shadow var(--transition-fast), border-color var(--transition-fast);
}

.gallery-item:hover {
  box-shadow: var(--shadow-md);
  border-color: #D8D8D5;
}

.gallery-item:first-child {
  grid-column: span 2;
}

.gallery-screen {
  width: 100%;
  background: var(--color-surface);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* Shared Notion-screen chrome bar */
.screen-chrome {
  height: 32px;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0 12px;
  flex-shrink: 0;
}

.chrome-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.screen-body {
  padding: 20px 24px;
  flex: 1;
}

/* Gallery screen 1 — Project board */
.gs-board-cols {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  padding: 20px 24px 24px;
}

.gs-board-col-head {
  height: 10px;
  background: var(--color-border);
  border-radius: 4px;
  margin-bottom: 10px;
  width: 60%;
}

.gs-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 10px;
  margin-bottom: 8px;
}

.gs-card-line {
  height: 8px;
  background: var(--color-border);
  border-radius: 3px;
  margin-bottom: 6px;
}

.gs-card-line.short { width: 55%; margin-bottom: 0; }

.gs-card-badge {
  display: inline-block;
  height: 16px;
  width: 44px;
  border-radius: 3px;
  margin-top: 8px;
}

/* Gallery screen 2 — Timeline */
.gs-timeline {
  padding: 20px 24px 24px;
}

.gs-tl-header {
  display: flex;
  gap: 8px;
  margin-bottom: 14px;
}

.gs-tl-month {
  flex: 1;
  height: 10px;
  background: var(--color-border);
  border-radius: 3px;
}

.gs-tl-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}

.gs-tl-label {
  width: 80px;
  height: 8px;
  background: var(--color-border);
  border-radius: 3px;
  flex-shrink: 0;
}

.gs-tl-bar-wrap {
  flex: 1;
  height: 10px;
  background: var(--color-surface);
  border-radius: 4px;
  overflow: hidden;
}

.gs-tl-bar {
  height: 100%;
  border-radius: 4px;
  opacity: 0.6;
}

/* Gallery screen 3 — Docs */
.gs-doc {
  padding: 20px 24px 24px;
}

.gs-doc-title {
  height: 18px;
  background: var(--color-border);
  border-radius: 4px;
  width: 48%;
  margin-bottom: 16px;
}

.gs-doc-lines {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.gs-doc-line {
  height: 8px;
  background: var(--color-border);
  border-radius: 3px;
  opacity: 0.6;
}

/* Gallery screen 4 — Dashboard */
.gs-dashboard {
  padding: 20px 24px 24px;
}

.gs-dash-title {
  height: 14px;
  background: var(--color-border);
  border-radius: 4px;
  width: 35%;
  margin-bottom: 14px;
}

.gs-dash-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-bottom: 14px;
}

.gs-stat-box {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 10px;
}

.gs-stat-num {
  height: 20px;
  background: var(--color-accent);
  border-radius: 3px;
  width: 50%;
  margin-bottom: 6px;
  opacity: 0.3;
}

.gs-stat-label {
  height: 8px;
  background: var(--color-border);
  border-radius: 3px;
  width: 80%;
}

.gs-bar-chart {
  display: flex;
  align-items: flex-end;
  gap: 6px;
  height: 48px;
  padding: 0 4px;
}

.gs-bar {
  flex: 1;
  border-radius: 3px 3px 0 0;
  background: var(--color-accent);
  opacity: 0.25;
  min-width: 0;
}

.gallery-caption {
  padding: 14px 20px;
  border-top: 1px solid var(--color-border);
  background: var(--color-bg);
}

.gallery-caption strong {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-dark);
  margin-bottom: 2px;
}

.gallery-caption span {
  font-size: 12px;
  color: var(--color-muted);
}

/* ============================
   SEKCJA: CTA KOŃCOWE
   ============================ */
.cs-cta-section {
  padding: 96px 0;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  text-align: center;
}

.cs-cta-inner {
  max-width: 580px;
  margin: 0 auto;
  padding: 0 24px;
}

.cs-cta-inner h2 {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 600;
  color: var(--color-dark);
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.cs-cta-inner p {
  font-size: 17px;
  color: var(--color-muted);
  line-height: 1.65;
  margin-bottom: 36px;
}

.cs-cta-inner .btn-group {
  justify-content: center;
  margin-top: 0;
}

/* Next case study link */
.next-case {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 32px 0;
  border-top: 1px solid var(--color-border);
  margin-top: 40px;
}

.next-case-label {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: 4px;
}

.next-case-title {
  font-size: 16px;
  font-weight: 500;
  color: var(--color-dark);
  transition: color var(--transition-fast);
}

.next-case:hover .next-case-title {
  color: var(--color-accent);
}

.next-case-arrow {
  font-size: 22px;
  color: var(--color-border);
  transition: transform var(--transition-fast), color var(--transition-fast);
}

.next-case:hover .next-case-arrow {
  transform: translateX(4px);
  color: var(--color-mid);
}

/* ============================
   RESPONSIVE — CASE STUDY
   ============================ */
@media (max-width: 1024px) {
  .cs-info-bar {
    grid-template-columns: repeat(2, 1fr);
  }
  .cs-info-item:nth-child(2) { border-right: none; }
  .cs-info-item:nth-child(3) { border-top: 1px solid var(--color-border); }
  .cs-info-item:nth-child(4) { border-top: 1px solid var(--color-border); border-right: none; }

  .metrics-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .cs-hero h1 { font-size: 32px; }
  .cs-hero-lead { font-size: 16px; }

  .cs-info-bar {
    grid-template-columns: 1fr 1fr;
  }

  .cs-hero-img { height: 240px; }
  .notion-mockup { width: 90%; }

  .challenge-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .solution-step {
    grid-template-columns: 48px 1fr;
    gap: 16px;
  }

  .step-num-large { font-size: 32px; }

  .metrics-grid {
    grid-template-columns: 1fr;
    gap: 2px;
  }

  .comparison {
    grid-template-columns: 1fr;
  }

  .comparison-divider { display: none; }
  .comparison-col.after { border-top: 1px solid var(--color-border); }

  .gallery-grid { grid-template-columns: 1fr; }
  .gallery-item:first-child { grid-column: span 1; }

  .gs-board-cols { grid-template-columns: repeat(2, 1fr); }
  .gs-dash-stats { grid-template-columns: 1fr 1fr; }

  .next-case { flex-direction: column; align-items: flex-start; gap: 8px; }

  .cs-section,
  .cs-section-alt { padding: 56px 0; }
}

@media (max-width: 480px) {
  .cs-info-bar { grid-template-columns: 1fr; }
  .cs-info-item { border-right: none !important; border-top: 1px solid var(--color-border); }
  .cs-info-item:first-child { border-top: none; }
}