/* MADMIX ARC framework section module */

#arc {
  background: var(--black);
}

.arc-inner {
  max-width: 1400px;
  margin: 0 auto;
  overflow-x: hidden;
}

.arc-header {
  margin-bottom: 4rem;
  max-width: 740px;
}

.arc-intro {
  font-size: var(--text-md);
  color: var(--gray3);
  font-weight: 300;
  line-height: 1.85;
  margin-top: 1rem;
}

.arc-stages {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  align-items: stretch;
  background: var(--border);
  gap: 1px;
  margin-bottom: 0;
}

.arc-stage {
  background: var(--gray);
  padding: 2.5rem 2rem;
  transition: background .18s, transform .18s;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.arc-stage::after {
  content: "";
  position: absolute;
  inset: auto 1.5rem 1.2rem auto;
  width: 96px;
  height: 44px;
  background:
    linear-gradient(90deg, currentColor 2px, transparent 2px) 0 0 / 16px 100%,
    linear-gradient(currentColor 2px, transparent 2px) 0 100% / 100% 12px;
  opacity: 0.08;
}

.arc-stage:hover {
  background: rgba(255,255,255,0.025);
  transform: translateY(-2px);
}

.arc-stage--amber {
  background: var(--gray2);
}

.arc-stage--amber:hover {
  background: rgba(186,117,23,0.05);
}

.arc-stage--green:hover {
  background: rgba(15,158,110,0.05);
}

.arc-stage-num {
  font-family: var(--font-display);
  font-size: 3.5rem;
  color: var(--border);
  line-height: 1;
  margin-bottom: 1rem;
}

.arc-stage-num--amber {
  color: rgba(186,117,23,0.22);
}

.arc-stage-num--green {
  color: rgba(15,158,110,0.22);
}

.arc-stage-label {
  font-size: var(--text-2xs);
  letter-spacing: 0.24em;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--red-text);
  margin-bottom: 0.6rem;
  display: block;
}

.arc-label--amber {
  color: var(--amber-text);
}

.arc-label--green {
  color: var(--green);
}

.arc-stage-title {
  font-family: var(--font-display);
  font-size: 1.3rem;
  letter-spacing: 0.04em;
  color: var(--white);
  line-height: 1.1;
  margin-bottom: 0.8rem;
}

.arc-stage-desc {
  font-size: var(--text-md);
  color: var(--gray3);
  line-height: 1.75;
  font-weight: 300;
  margin-bottom: 1.2rem;
}

.arc-stage-desc strong {
  color: var(--white);
  font-weight: 500;
}

.arc-tags {
  margin-top: auto;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.arc-tag {
  font-size: var(--text-2xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--red-text);
  border: 1px solid rgba(232,93,36,0.3);
  padding: 0.2rem 0.65rem;
}

.arc-tag--amber {
  color: var(--amber-text);
  border-color: rgba(186,117,23,0.35);
}

.arc-tag--green {
  color: var(--green);
  border-color: rgba(15,158,110,0.35);
}

.arc-connector {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--black);
  padding: 0 0.8rem;
  font-size: 1.4rem;
  color: var(--border);
  user-select: none;
}

.arc-cta-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
  padding: 2rem;
  border: 1px solid var(--border);
  border-top: none;
  background: var(--gray);
  overflow: hidden;
}

.arc-cta-text {
  font-size: var(--text-md);
  color: var(--gray3);
  font-weight: 300;
  line-height: 1.7;
  max-width: 560px;
  flex: 1;
}

@media (max-width: 900px) {
  .arc-header {
    margin-bottom: 2rem;
  }

  .arc-stages {
    grid-template-columns: 1fr;
    gap: 1px;
    background: var(--border);
  }

  .arc-stage {
    display: block;
    padding: 1.8rem 1.4rem;
  }

  .arc-stage-num {
    font-size: 2.5rem;
    margin-bottom: 0.6rem;
  }

  .arc-stage-title {
    font-size: 1.15rem;
  }

  .arc-stage-desc {
    font-size: var(--text-sm);
  }

  .arc-tags {
    margin-top: 1rem;
  }

  .arc-connector {
    display: none;
  }

  .arc-cta-row {
    flex-direction: column;
    align-items: flex-start;
    border: none;
    border-top: 1px solid var(--border);
    padding: 1.4rem 0 0;
    gap: 1.2rem;
    background: transparent;
    max-width: 100%;
    box-sizing: border-box;
  }

  .arc-cta-text {
    max-width: 100%;
    word-break: break-word;
  }

  .arc-cta-row .btn-primary {
    width: 100%;
    justify-content: center;
    white-space: normal;
    text-align: center;
    box-sizing: border-box;
  }
}