/* ==========================================================================
   Interpreter Tiers + Who We Serve + Coverage — Corporate Editorial
   ========================================================================== */

.tiers {
  background: var(--white);
  padding: 104px 0 0;
}

.tiers__inner {
  max-width: var(--container-wide);
  margin: 0 auto;
  padding: 0 40px;
}

.tiers__head {
  margin-bottom: 56px;
  max-width: 60ch;
}

.tiers__head h2 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.8rem, 2.2vw + 0.8rem, 2.6rem);
  line-height: 1.2;
  color: var(--ink);
  letter-spacing: -0.01em;
  margin: 18px 0 0;
}

.tier-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
  margin-bottom: 100px;
}

.tier-card {
  padding: 44px 44px 48px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  transition: background 0.2s ease;
}

.tier-card:hover { background: var(--paper); }

.tier-card__tag {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 11.5px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  padding: 5px 12px;
  border: 1px solid var(--navy-deep);
  color: var(--navy-deep);
  margin-bottom: 24px;
}

.tier-card--general .tier-card__tag {
  border-color: var(--line-strong);
  color: var(--ink);
  opacity: 0.65;
}

.tier-card h3 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 22px;
  color: var(--ink);
  margin-bottom: 16px;
}

.tier-card p {
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink);
  opacity: 0.68;
  margin: 0;
}

/* who we serve */
.who-serve {
  background: var(--paper);
  padding: 88px 0;
}

.who-serve__inner {
  max-width: var(--container-wide);
  margin: 0 auto;
  padding: 0 40px;
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 56px;
  align-items: start;
}

.who-serve__lead h2 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.7rem, 2vw + 0.8rem, 2.3rem);
  line-height: 1.25;
  color: var(--ink);
  letter-spacing: -0.01em;
  margin: 18px 0 0;
  max-width: 14ch;
}

.who-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.who-tag {
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--ink);
  padding: 12px 18px;
  border: 1px solid var(--line);
  background: var(--white);
  transition: border-color 0.15s ease, color 0.15s ease, transform 0.15s ease;
}

.who-tag:hover {
  border-color: var(--navy-deep);
  color: var(--navy-deep);
  transform: translateY(-2px);
}

/* coverage — redesigned as a chip field with a subtle animated route behind it */
.coverage {
  background: var(--navy-deep);
  color: var(--white);
  padding: 96px 0;
  position: relative;
  overflow: hidden;
}

.coverage__route {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.5;
  pointer-events: none;
}

.coverage__route-dot {
  offset-path: path('M -40 130 Q 340 -30 720 140 T 1500 120');
  offset-rotate: 0deg;
  animation: coverage-travel 14s linear infinite;
}

@keyframes coverage-travel {
  from { offset-distance: 0%; }
  to { offset-distance: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  .coverage__route-dot { animation: none; offset-distance: 30%; }
}

.coverage__inner {
  max-width: var(--container-wide);
  margin: 0 auto;
  padding: 0 40px;
  display: grid;
  grid-template-columns: 0.7fr 1.3fr;
  gap: 56px;
  align-items: start;
  position: relative;
  z-index: 2;
}

.coverage__lead .section-eyebrow { color: var(--sky); }
.coverage__lead .section-eyebrow .rule { background: var(--gold); }

.coverage__lead h2 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.7rem, 2vw + 0.8rem, 2.3rem);
  line-height: 1.25;
  color: var(--white);
  letter-spacing: -0.01em;
  margin: 18px 0 16px;
  max-width: 13ch;
}

.coverage__lead p {
  font-family: var(--font-body);
  font-size: 14.5px;
  line-height: 1.7;
  color: rgba(255,255,255,0.6);
  max-width: 32ch;
  margin: 0;
}

.coverage__cities {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.city-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-size: 13.5px;
  color: rgba(255,255,255,0.82);
  padding: 10px 16px 10px 12px;
  border: 1px solid rgba(255,255,255,0.18);
  background: rgba(255,255,255,0.03);
  transition: transform 0.15s ease, border-color 0.15s ease, background 0.15s ease;
}

.city-chip svg {
  width: 13px;
  height: 13px;
  color: var(--gold);
  flex-shrink: 0;
}

.city-chip:hover {
  transform: translateY(-3px);
  border-color: var(--gold);
  background: rgba(255,255,255,0.07);
}

.city-chip--more {
  color: var(--gold);
  font-style: italic;
  border-style: dashed;
}

@media (max-width: 960px) {
  .tiers { padding: 80px 0 0; }
  .tier-grid { grid-template-columns: 1fr; margin-bottom: 72px; }
  .who-serve, .coverage { padding: 64px 0; }
  .who-serve__inner, .coverage__inner { grid-template-columns: 1fr; gap: 32px; padding: 0 24px; }
  .who-serve__lead h2, .coverage__lead h2, .coverage__lead p { max-width: none; }
}

@media (max-width: 640px) {
  .tiers__inner, .who-serve__inner, .coverage__inner { padding: 0 20px; }
  .tier-card { padding: 32px 24px; }
  .city-chip { font-size: 13px; padding: 9px 14px 9px 11px; }
}