/* ═══════════════════════════════════════════════════════════════════════════
   pages/how-it-works.css — How It Works Page Styles
   ═══════════════════════════════════════════════════════════════════════════ */

/* ── How It Works Hero ────────────────────────────────────────────────────── */

.hiw-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg width='40' height='40' viewBox='0 0 40 40' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M20 5 L35 20 L20 35 L5 20 Z' fill='none' stroke='rgba(255,255,255,0.04)' stroke-width='1'/%3E%3C/svg%3E");
  background-size: 40px 40px;
  pointer-events: none;
}




/* ── Step-by-step workflow ────────────────────────────────────────────────── */
.steps-section {
  background-color: var(--color-bg-white);
}

.steps-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
  max-width: 800px;
  margin-inline: auto;
}

/* Vertical connector line */
.steps-list::before {
  content: '';
  position: absolute;
  left: 27px;
  top: 28px;
  bottom: 28px;
  width: 2px;
  background: linear-gradient(
    to bottom,
    var(--color-primary) 0%,
    var(--color-border) 100%
  );
}

.step-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-6);
  padding-block: var(--space-8);
  position: relative;
}

.step-item__number {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  border-radius: var(--radius-full);
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-extrabold);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 1;
  box-shadow: 0 0 0 4px var(--color-bg-white), 0 0 0 6px var(--color-primary-light);
}

.step-item__content {
  padding-top: var(--space-3);
  flex: 1;
}

.step-item__label {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-2);
}

.step-item__title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-3);
}

.step-item__desc {
  font-size: var(--font-size-base);
  color: var(--color-text-primary);
  line-height: var(--line-height-relaxed);
}

/* ── Flow diagram visual ──────────────────────────────────────────────────── */
.flow-section {
  background-color: var(--color-bg-light);
}

.flow-diagram {
  display: grid;
  grid-template-columns: 2fr auto 2fr auto 2fr;
  gap: var(--space-4);
  align-items: center;
  max-width: 900px;
  margin-inline: auto;
}

.flow-node {
  background-color: var(--color-bg-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  text-align: center;
  box-shadow: var(--shadow-sm);
}

.flow-node__icon {
  width: 36px;
  height: 36px;
  color: var(--color-primary);
  margin-inline: auto;
  margin-bottom: var(--space-3);
}

.flow-node__title {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-1);
}

.flow-node__desc {
  font-size: var(--font-size-xs);
  color: var(--color-text-primary);
}

.flow-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-xmuted);
}

.flow-arrow svg {
  width: 24px;
  height: 24px;
}

@media (max-width: 768px) {
  .flow-diagram {
    grid-template-columns: 1fr;
  }

  .flow-arrow {
    transform: rotate(90deg);
    margin-block: calc(-1 * var(--space-2));
  }

  .steps-list::before {
    display: none;
  }
}

/* ── Architecture overview ────────────────────────────────────────────────── */
.arch-section {
  background-color: var(--color-bg-white);
}

.arch-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}

.arch-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  background-color: var(--color-bg-light);
}

.arch-card__icon {
  width: 32px;
  height: 32px;
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}

.arch-card__title {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
}

.arch-card__desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-primary);
  line-height: var(--line-height-relaxed);
}

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