:root {
  --color-navy: #141A2E;
  --color-offwhite: #F7F4EF;
  --color-terracotta: #C4622D;
  --color-graphite: #4A4F5C;
  --color-sage: #8A9A8E;
  --color-white: #FFFFFF;
  --color-border-subtle: rgba(20, 26, 46, 0.12);
  
  --font-serif: 'Fraunces', 'Playfair Display', Georgia, serif;
  --font-sans: 'Inter', 'Plus Jakarta Sans', system-ui, sans-serif;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background-color: var(--color-offwhite);
  color: var(--color-graphite);
  font-family: var(--font-sans);
  line-height: 1.7;
  overflow-x: hidden;
}

.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Nav Header */
.vantis-top-bar {
  border-bottom: 1px solid var(--color-border-subtle);
  padding: 24px 0;
  background: var(--color-offwhite);
}

.top-bar-flex {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.spec-badge {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-terracotta);
}

.back-link {
  font-size: 13px;
  color: var(--color-graphite);
  text-decoration: none;
  font-weight: 600;
}

.back-link:hover {
  color: var(--color-navy);
}

/* Section 1: Hero Header */
.case-hero {
  padding: 80px 0 60px;
  text-align: left;
}

.meta-row {
  display: flex;
  gap: 16px;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-sage);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 18px;
}

.case-title {
  font-family: var(--font-serif);
  font-size: 58px;
  line-height: 1.05;
  color: var(--color-navy);
  font-weight: 700;
  letter-spacing: -1px;
  margin-bottom: 16px;
}

.case-tagline {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 26px;
  color: var(--color-terracotta);
  margin-bottom: 24px;
}

.case-intro {
  font-size: 20px;
  color: var(--color-graphite);
  line-height: 1.6;
  max-width: 760px;
}

/* Section 2: By The Numbers (Navy Background / Terracotta Numerals) */
.numbers-section {
  background-color: var(--color-navy);
  color: var(--color-white);
  padding: 70px 0;
  margin: 40px 0 70px;
  border-radius: 12px;
}

.numbers-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  text-align: center;
}

.number-card .stat-val {
  font-family: var(--font-serif);
  font-size: 46px;
  font-weight: 800;
  color: var(--color-terracotta);
  line-height: 1;
  margin-bottom: 8px;
}

.number-card .stat-label {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: rgba(255, 255, 255, 0.7);
  font-weight: 600;
}

/* Section 3: The Brief */
.narrative-block {
  margin-bottom: 60px;
}

.section-label {
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--color-navy);
  margin-bottom: 12px;
  display: inline-block;
}

.narrative-headline {
  font-family: var(--font-serif);
  font-size: 34px;
  color: var(--color-navy);
  margin-bottom: 20px;
  line-height: 1.25;
}

.narrative-body {
  font-size: 18px;
  line-height: 1.8;
  color: var(--color-graphite);
}

.narrative-body p {
  margin-bottom: 20px;
}

/* Section 4: What We Built (4-Point List) */
.built-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 24px;
}

.built-card {
  background: var(--color-white);
  border: 1px solid var(--color-border-subtle);
  border-radius: 8px;
  padding: 28px;
}

.built-card .num {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 700;
  color: var(--color-terracotta);
  margin-bottom: 8px;
}

.built-card h4 {
  font-family: var(--font-serif);
  font-size: 20px;
  color: var(--color-navy);
  margin-bottom: 10px;
}

.built-card p {
  font-size: 14px;
  color: var(--color-graphite);
  line-height: 1.6;
}

/* Section 5: System Decisions (Terracotta Pull-Quote) */
.pullquote-box {
  margin: 60px 0;
  padding: 44px 36px;
  border-left: 4px solid var(--color-terracotta);
  background: rgba(196, 98, 45, 0.06);
  border-radius: 0 8px 8px 0;
}

.pullquote-text {
  font-family: var(--font-serif);
  font-size: 28px;
  line-height: 1.4;
  color: var(--color-navy);
  font-style: italic;
}

.pullquote-author {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--color-terracotta);
  margin-top: 14px;
}

/* Section 7: What's Inside (Sage Accented Components) */
.sage-components-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 24px;
}

.sage-comp-card {
  background: var(--color-white);
  border: 1px solid var(--color-border-subtle);
  border-top: 3px solid var(--color-sage);
  border-radius: 6px;
  padding: 22px;
}

.sage-comp-card .icon {
  font-size: 24px;
  margin-bottom: 8px;
}

.sage-comp-card h4 {
  font-family: var(--font-serif);
  font-size: 18px;
  color: var(--color-navy);
  margin-bottom: 6px;
}

.sage-comp-card p {
  font-size: 13px;
  color: var(--color-graphite);
}

/* Section 8: Technology Tags */
.tech-pills-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

.tech-pill {
  background: transparent;
  border: 1.5px solid var(--color-navy);
  color: var(--color-navy);
  font-size: 13px;
  font-weight: 700;
  padding: 8px 18px;
  border-radius: 999px;
  letter-spacing: 0.5px;
}

/* Footer */
.case-footer {
  border-top: 1px solid var(--color-border-subtle);
  padding: 50px 0;
  margin-top: 80px;
  text-align: center;
  font-size: 13px;
  color: var(--color-graphite);
}

/* Calm Confident Scroll Reveal */
.calm-reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1), transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.calm-reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 768px) {
  .numbers-grid { grid-template-columns: 1fr; }
  .built-grid { grid-template-columns: 1fr; }
  .sage-components-list { grid-template-columns: 1fr; }
  .case-title { font-size: 40px; }
  .pullquote-text { font-size: 22px; }
}