.tsc-foundation {
  background: var(--paper);
}
.tsc-foundation__inner {
  display: grid;
  grid-template-columns: 1fr 0.85fr;
  gap: 56px;
  align-items: center;
}
.tsc-foundation h2 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  margin-bottom: 18px;
}
.tsc-foundation p {
  color: var(--ink-soft);
  font-size: 1.04rem;
}

.tsc-foundation__stack {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}
.tsc-foundation__layer {
  width: 100%;
  padding: 16px 22px;
  border-radius: 12px;
  text-align: center;
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--ink-soft);
  background: var(--paper-soft);
  border: 1px solid var(--paper-line);
}
.tsc-foundation__layer--3 {
  width: 82%;
}
.tsc-foundation__layer--2 {
  width: 64%;
}
.tsc-foundation__layer--1 {
  width: 46%;
}
.tsc-foundation__layer--base {
  width: 100%;
  color: #fff;
  background: linear-gradient(120deg, var(--brand) 0%, var(--brand-dark) 100%);
  box-shadow: var(--shadow-brand);
  padding: 22px;
  font-size: 1rem;
  position: relative;
}
.tsc-foundation__layer--base::after {
  content: "THE FOUNDATION";
  position: absolute;
  top: -11px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--ink);
  color: #fff;
  font-size: 0.65rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  padding: 4px 12px;
  border-radius: var(--radius-full);
}

@media (max-width: 900px) {
  .tsc-foundation__inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

.tsc-process {
  background: var(--navy-950);
}
.tsc-process .section-head h2 {
  color: #fff;
}
.tsc-process .section-head p {
  color: rgba(255, 255, 255, 0.6);
}
.tsc-process .eyebrow {
  color: var(--brand-light);
}

.tsc-process__list {
  max-width: 820px;
  margin: 0 auto;
}
.tsc-process__row {
  display: flex;
  gap: 24px;
}
.tsc-process__rail {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex-shrink: 0;
}
.tsc-process__tag {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 0.78rem;
  color: var(--navy-950);
  background: var(--brand-light);
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.tsc-process__line {
  width: 2px;
  flex: 1;
  min-height: 30px;
  background: rgba(255, 255, 255, 0.14);
  margin: 6px 0;
}
.tsc-process__card {
  flex: 1;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: 22px 26px;
  margin-bottom: 22px;
  display: flex;
  gap: 18px;
  align-items: flex-start;
}
.tsc-process__icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: 11px;
  background: rgba(93, 210, 245, 0.14);
  color: var(--brand-light);
  display: flex;
  align-items: center;
  justify-content: center;
}
.tsc-process__card h3 {
  color: #fff;
  font-size: 1.05rem;
  margin-bottom: 6px;
}    
.tsc-process__card p {
  color: rgba(255, 255, 255, 0.62);
  font-size: 0.9rem;
  margin: 0;
}

@media (max-width: 640px) {
  .tsc-process__row {
    gap: 14px;
  }
  .tsc-process__card {
    padding: 18px;
    flex-direction: column;
  }
}

.tsc-tools {
  background: var(--paper-soft);
}
.tsc-tools__grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
}
.tsc-tools__chip {
  display: flex;
  align-items: center;
  gap: 10px;
  background: #fff;
  border: 1px solid var(--paper-line);
  border-radius: var(--radius-full);
  padding: 14px 22px;
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--ink);
  box-shadow: var(--shadow-sm);
}
.tsc-tools__chip-icon {
  width: 30px;
  height: 30px;
  border-radius: 9px;
  background: var(--paper-soft);
  color: var(--brand);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.tsc-changes {
  background: var(--paper);
}
.tsc-changes__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  max-width: 920px;
  margin: 0 auto;
}
.tsc-changes__card {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  background: var(--paper-soft);
  border-left: 4px solid var(--success);
  border-radius: var(--radius-md);
  padding: 22px 24px;
}
.tsc-changes__icon {
  flex-shrink: 0;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: rgba(34, 197, 94, 0.12);
  color: var(--success);
  display: flex;
  align-items: center;
  justify-content: center;
}
.tsc-changes__card p {
  margin: 0;
  font-weight: 700;
  font-size: 0.94rem;
  color: var(--ink);
}

@media (max-width: 640px) {
  .tsc-changes__grid {
    grid-template-columns: 1fr;
  }
}

.tsc-cta {
  background: var(--navy-950);
}
.tsc-cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    circle at 50% 0%,
    rgba(0, 212, 184, 0.32),
    transparent 60%
  );
  pointer-events: none;
}