/* ==========================================================================
   Faster Payments Inc. — Design System
   ========================================================================== */

:root {
  --color-bg: #FFFFFF;
  --color-text-primary: #111827;
  --color-text-secondary: #6B7280;
  --color-border: #E5E7EB;
  --color-accent: #0F62FE;
  --color-surface: #F9FAFB;

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --size-hero: clamp(2.5rem, 5.4vw, 4.5rem);      /* 40px -> 72px */
  --size-h1: clamp(2rem, 4vw, 3rem);               /* 32px -> 48px */
  --size-h2: clamp(1.5rem, 2.6vw, 2rem);           /* 24px -> 32px */
  --size-h3: clamp(1.125rem, 1.6vw, 1.25rem);      /* 18px -> 20px */
  --size-body: 1.125rem;                           /* 18px */
  --size-body-sm: 1rem;                            /* 16px */
  --size-nav: 1rem;                                /* 16px */
  --size-eyebrow: 0.8125rem;                       /* 13px */

  --container-max: 1200px;
  --space-section: clamp(4rem, 9vw, 8rem);
  --radius: 6px;

  --ease: cubic-bezier(0.4, 0, 0.2, 1);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--color-text-primary);
  background: var(--color-bg);
  font-size: var(--size-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, svg { max-width: 100%; display: block; }

a { color: inherit; text-decoration: none; }

ul { margin: 0; padding: 0; list-style: none; }

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 2rem;
}

section { padding: var(--space-section) 0; }

.eyebrow {
  font-size: var(--size-eyebrow);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin: 0 0 1rem;
}

h1, h2, h3, h4 {
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 0;
  color: var(--color-text-primary);
}

h1 { font-size: var(--size-h1); line-height: 1.1; }
h2 { font-size: var(--size-h2); line-height: 1.15; }
h3 { font-size: var(--size-h3); line-height: 1.3; }

p { margin: 0; }

.lede {
  font-size: 1.25rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  max-width: 640px;
}

.body-text {
  color: var(--color-text-secondary);
  font-size: var(--size-body);
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.9rem 1.75rem;
  border-radius: var(--radius);
  font-size: var(--size-body-sm);
  font-weight: 600;
  letter-spacing: -0.01em;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color 0.15s var(--ease), border-color 0.15s var(--ease), color 0.15s var(--ease);
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-text-primary);
  color: #FFFFFF;
}
.btn-primary:hover { background: #1F2937; }

.btn-secondary {
  background: transparent;
  color: var(--color-text-primary);
  border-color: var(--color-border);
}
.btn-secondary:hover { border-color: var(--color-text-primary); }

.btn-block { width: 100%; }

/* ---------- Header / Nav ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 0;
}

.nav-logo {
  font-weight: 700;
  font-size: 1.0625rem;
  letter-spacing: -0.01em;
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  white-space: nowrap;
  flex-shrink: 0;
}

.nav-logo span {
  font-weight: 500;
  color: var(--color-text-secondary);
  font-size: var(--size-eyebrow);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  white-space: nowrap;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2.25rem;
}

.nav-links a {
  font-size: var(--size-nav);
  color: var(--color-text-secondary);
  font-weight: 500;
  transition: color 0.15s var(--ease);
}

.nav-links a:hover,
.nav-links a[aria-current="page"] {
  color: var(--color-text-primary);
}

.nav-cta { display: flex; align-items: center; gap: 1.5rem; }

.nav-mobile-cta { display: none; }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text-primary);
  margin: 5px 0;
  transition: transform 0.2s var(--ease), opacity 0.2s var(--ease);
}

/* ---------- Footer ---------- */

.site-footer {
  border-top: 1px solid var(--color-border);
  padding: 4rem 0 2.5rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 3rem;
}

.footer-brand .nav-logo { margin-bottom: 1rem; }

.footer-tagline {
  color: var(--color-text-secondary);
  font-size: var(--size-body-sm);
  max-width: 260px;
}

.footer-col h4 {
  font-size: var(--size-body-sm);
  margin-bottom: 1rem;
}

.footer-col ul li { margin-bottom: 0.65rem; }

.footer-col a {
  color: var(--color-text-secondary);
  font-size: var(--size-body-sm);
  transition: color 0.15s var(--ease);
}

.footer-col a:hover { color: var(--color-text-primary); }

.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding-top: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--color-text-secondary);
  font-size: 0.875rem;
}

/* ---------- Hero ---------- */

.hero {
  padding-top: clamp(3rem, 7vw, 5.5rem);
  padding-bottom: clamp(3rem, 7vw, 5.5rem);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
}

@media (min-width: 960px) {
  .hero-grid {
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
  }
}

.hero-content h1 { margin-bottom: 1.5rem; }

.hero-subtitle {
  font-size: 1.375rem;
  color: var(--color-text-primary);
  margin-bottom: 1rem;
  font-weight: 500;
  max-width: 640px;
}

.hero-description {
  color: var(--color-text-secondary);
  font-size: var(--size-body);
  max-width: 560px;
  margin-bottom: 2.5rem;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero-visual {
  border: 1px solid var(--color-border);
  border-radius: 10px;
  background: var(--color-surface);
  padding: 2rem;
}

.page-hero {
  padding-top: clamp(3rem, 8vw, 6rem);
  padding-bottom: clamp(2.5rem, 6vw, 4rem);
  border-bottom: 1px solid var(--color-border);
}

.page-hero .lede { margin-top: 1.25rem; }

.about-hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: center;
}

.about-photo { display: flex; }

.about-photo img {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid var(--color-border);
}

@media (min-width: 860px) {
  .about-hero-grid { grid-template-columns: 1fr 200px; gap: 3rem; }
  .about-photo img { width: 200px; height: 200px; }
  .about-photo { justify-content: flex-end; }
}

/* ---------- Section headers ---------- */

.section-header {
  max-width: 720px;
  margin-bottom: 3.5rem;
}

.section-header.centered {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.section-header h2 { margin-bottom: 1rem; }

.section-alt { background: var(--color-surface); }

/* ---------- Grids / Cards ---------- */

.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }

.card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 2rem;
  background: var(--color-bg);
  transition: border-color 0.15s var(--ease);
}

.card:hover { border-color: #C6CCD6; }

.card-index {
  font-size: var(--size-body-sm);
  color: var(--color-accent);
  font-weight: 700;
  margin-bottom: 1.25rem;
  display: block;
}

.icon-badge {
  width: 44px;
  height: 44px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  color: var(--color-accent);
  background: var(--color-surface);
  flex-shrink: 0;
}

.icon-badge svg { width: 22px; height: 22px; }

.icon-badge.is-dark {
  background: var(--color-text-primary);
  border-color: var(--color-text-primary);
  color: #FFFFFF;
}

.card h3 { margin-bottom: 0.75rem; }

.card p {
  color: var(--color-text-secondary);
  font-size: var(--size-body-sm);
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.25rem;
}

.card-tags span {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 0.25rem 0.625rem;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  margin-top: 1.25rem;
  font-size: var(--size-body-sm);
  font-weight: 600;
  color: var(--color-text-primary);
}

.card-link svg { width: 14px; height: 14px; transition: transform 0.15s var(--ease); }
.card:hover .card-link svg { transform: translateX(3px); }

/* ---------- About preview / split sections ---------- */

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.split-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
  margin-top: 2rem;
}

.stat-number {
  font-size: 2.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-text-primary);
  margin-bottom: 0.25rem;
}

.stat-label {
  font-size: var(--size-body-sm);
  color: var(--color-text-secondary);
}

/* ---------- KPI row (stat tiles) ---------- */

.kpi-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--color-border);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-top: 2.5rem;
}

.kpi-tile {
  background: var(--color-bg);
  padding: 1.75rem 1.5rem;
}

.kpi-value {
  font-size: clamp(1.5rem, 2.4vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-text-primary);
  margin-bottom: 0.375rem;
}

.kpi-label {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

.stat-band {
  padding: 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface);
}

.stat-band .container { padding-top: 3rem; padding-bottom: 3rem; }

.kpi-row-band {
  background: transparent;
  border: none;
  margin-top: 0;
}

.kpi-row-band .kpi-tile {
  background: transparent;
  padding: 0 1.5rem;
  border-left: 1px solid var(--color-border);
}

.kpi-row-band .kpi-tile:first-child { border-left: none; padding-left: 0; }

.kpi-row-band .kpi-value { font-size: clamp(1.75rem, 3vw, 2.5rem); }

/* ---------- Career timeline (chart) ---------- */

.timeline { margin-top: 1rem; }

.timeline-axis {
  position: relative;
  height: 24px;
  margin-left: 260px;
  border-bottom: 1px solid var(--color-border);
}

.timeline-axis-tick {
  position: absolute;
  bottom: 0;
  width: 1px;
  height: 6px;
  background: var(--color-border);
}

.timeline-axis-label {
  position: absolute;
  bottom: 10px;
  transform: translateX(-50%);
  font-size: 0.75rem;
  color: var(--color-text-secondary);
  white-space: nowrap;
}

.timeline-body { margin-top: 0.5rem; }

.timeline-row {
  display: grid;
  grid-template-columns: 260px 1fr;
  align-items: center;
  gap: 1.5rem;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--color-border);
}

.timeline-row:last-child { border-bottom: none; }

.timeline-role {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-text-primary);
}

.timeline-company {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  margin-top: 0.125rem;
}

.timeline-dates {
  font-size: 0.75rem;
  color: var(--color-text-secondary);
  margin-top: 0.25rem;
}

.timeline-track {
  position: relative;
  height: 16px;
}

.timeline-bar {
  position: absolute;
  top: 0;
  height: 16px;
  min-width: 8px;
  border-radius: 999px;
  background: #D1D5DB;
}

.timeline-bar.is-current { background: var(--color-accent); }

.timeline-legend {
  display: flex;
  gap: 1.5rem;
  margin-top: 1.5rem;
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
}

.timeline-legend span {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.timeline-legend-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #D1D5DB;
}

.timeline-legend-dot.is-current { background: var(--color-accent); }

/* ---------- Payment network wordmark grid ---------- */

.logo-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin-top: 2.5rem;
}

.logo-tile {
  height: 100px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-surface);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-primary);
  font-size: 1.0625rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  text-align: center;
  padding: 0 1rem;
}

.avatar-placeholder {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-secondary);
  flex-shrink: 0;
}

.avatar-placeholder svg { width: 18px; height: 18px; }

.avatar-placeholder.is-lg { width: 64px; height: 64px; margin-bottom: 1.25rem; }
.avatar-placeholder.is-lg svg { width: 26px; height: 26px; }

.team-avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  object-fit: cover;
  margin-bottom: 1.25rem;
  border: 1px solid var(--color-border);
}

.card.is-open-role { border-style: dashed; }
.card.is-open-role h3 { color: var(--color-text-secondary); }
.card .role-tag {
  display: inline-block;
  margin-top: 0.75rem;
  font-size: 0.75rem;
  color: var(--color-accent);
  font-weight: 600;
  letter-spacing: 0.02em;
}

/* ---------- Final CTA ---------- */

.cta-banner {
  background: var(--color-text-primary);
  text-align: center;
}

.cta-banner .section-header { margin: 0 auto 2rem; }

.cta-banner h2 { color: #FFFFFF; }

.cta-banner .lede { color: #9CA3AF; margin-left: auto; margin-right: auto; }

.cta-banner .btn-primary {
  background: #FFFFFF;
  color: var(--color-text-primary);
}

.cta-banner .btn-primary:hover { background: #E5E7EB; }

.cta-banner .btn-secondary {
  color: #FFFFFF;
  border-color: #374151;
}

.cta-banner .btn-secondary:hover { border-color: #6B7280; }

.cta-actions {
  display: flex;
  justify-content: center;
  gap: 1rem;
}

/* ---------- Case Studies (detail) ---------- */

.case-study-block {
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 3rem;
  margin-bottom: 2rem;
}

.case-study-block + .case-study-block { margin-top: 2rem; }

.case-study-meta {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.case-study-meta span {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 0.25rem 0.625rem;
}

.case-study-columns {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
}

.case-study-columns h4 {
  font-size: var(--size-body-sm);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-accent);
  margin-bottom: 0.75rem;
}

.case-study-columns p {
  color: var(--color-text-secondary);
  font-size: var(--size-body-sm);
}

/* ---------- Industries detail ---------- */

.industry-block {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 3rem;
  padding: 3rem 0;
  border-bottom: 1px solid var(--color-border);
}

.industry-block:last-child { border-bottom: none; }

.industry-block ul { margin-top: 1.25rem; }

.industry-block ul li {
  color: var(--color-text-secondary);
  font-size: var(--size-body-sm);
  padding-left: 1.25rem;
  position: relative;
  margin-bottom: 0.6rem;
}

.industry-block ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55rem;
  width: 5px;
  height: 5px;
  background: var(--color-accent);
  border-radius: 50%;
}

.dot-list { margin-top: 1.5rem; }

.dot-list li {
  color: var(--color-text-secondary);
  font-size: 1rem;
  padding-left: 1.25rem;
  position: relative;
  margin-bottom: 0.6rem;
}

.dot-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55rem;
  width: 5px;
  height: 5px;
  background: var(--color-accent);
  border-radius: 50%;
}

/* ---------- Advisory detail ---------- */

.advisory-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  padding: 3.5rem 0;
  border-bottom: 1px solid var(--color-border);
  align-items: start;
}

.advisory-block:last-child { border-bottom: none; }

.advisory-num {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--color-accent);
  letter-spacing: 0.06em;
}

.advisory-block h3 { margin: 0.75rem 0 1rem; }

.advisory-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.5rem 1.5rem;
}

.advisory-list li {
  color: var(--color-text-secondary);
  font-size: var(--size-body-sm);
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--color-border);
}

/* ---------- About page ---------- */

.about-section {
  padding: 3rem 0;
  border-bottom: 1px solid var(--color-border);
}

.about-section:last-child { border-bottom: none; }

.about-section-grid {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 3rem;
}

.linkedin-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1.5rem;
  font-weight: 600;
  color: var(--color-text-primary);
  border-bottom: 1px solid var(--color-text-primary);
  padding-bottom: 2px;
}

/* ---------- Forms ---------- */

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
}

.form-group { margin-bottom: 1.5rem; }

.form-group label {
  display: block;
  font-size: var(--size-body-sm);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 0.85rem 1rem;
  font-family: var(--font-sans);
  font-size: var(--size-body-sm);
  color: var(--color-text-primary);
  background: var(--color-bg);
  transition: border-color 0.15s var(--ease);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
}

.form-group textarea { resize: vertical; min-height: 140px; }

.contact-info-item { margin-bottom: 2rem; }

.contact-info-item h4 {
  font-size: var(--size-body-sm);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-accent);
  margin-bottom: 0.5rem;
}

.contact-info-item p, .contact-info-item a {
  color: var(--color-text-secondary);
  font-size: var(--size-body);
}

.form-note {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  margin-top: 1rem;
}

.form-success {
  display: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.5rem;
  background: var(--color-surface);
  margin-top: 1.5rem;
}

/* ---------- Responsive ---------- */

@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1.4fr 1fr 1fr; }
  .industry-block { grid-template-columns: 1fr; gap: 1rem; }
  .about-section-grid { grid-template-columns: 1fr; gap: 1rem; }
  .case-study-columns { grid-template-columns: 1fr; gap: 1.5rem; }
  .logo-grid { grid-template-columns: repeat(2, 1fr); }
  .kpi-row { grid-template-columns: repeat(2, 1fr); }
  .kpi-row-band .kpi-tile:nth-child(3),
  .kpi-row-band .kpi-tile:nth-child(4) {
    border-left: 1px solid var(--color-border);
    border-top: 1px solid var(--color-border);
    padding-top: 1.5rem;
    margin-top: 1.5rem;
  }
  .kpi-row-band .kpi-tile:nth-child(3) { border-left: none; padding-left: 0; }
  .timeline-row { grid-template-columns: 200px 1fr; gap: 1rem; }
  .timeline-axis { margin-left: 200px; }
}

@media (max-width: 720px) {
  .timeline-axis { display: none; }
  .timeline-row {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }
  .timeline-track { display: none; }
}

@media (max-width: 860px) {
  .nav-links {
    position: fixed;
    top: 65px;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-bg);
    flex-direction: column;
    align-items: flex-start;
    padding: 2rem;
    gap: 1.75rem;
    transform: translateX(100%);
    transition: transform 0.25s var(--ease);
    overflow-y: auto;
  }
  .nav-links.open { transform: translateX(0); }
  .nav-links a { font-size: 1.125rem; }
  .nav-toggle { display: block; }
  .nav-cta .btn-primary { display: none; }
  .nav-links .nav-mobile-cta { display: inline-flex; margin-top: 1rem; }

  .split, .advisory-block, .contact-grid { grid-template-columns: 1fr; gap: 2rem; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 2.5rem; }
  .footer-bottom { flex-direction: column; gap: 1rem; align-items: flex-start; }
  .case-study-block { padding: 2rem 1.5rem; }
  .advisory-list { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  .container { padding: 0 1.25rem; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero-actions, .cta-actions { flex-direction: column; align-items: stretch; }
  .case-study-meta { flex-wrap: wrap; }
  .kpi-row { grid-template-columns: 1fr; }
  .split-stats { grid-template-columns: 1fr; }
  .logo-grid { grid-template-columns: repeat(2, 1fr); }
  .kpi-row-band .kpi-tile {
    border-left: none;
    border-top: 1px solid var(--color-border);
    padding: 1.5rem 0 0;
  }
  .kpi-row-band .kpi-tile:first-child { border-top: none; padding-top: 0; }
}