/* ============================================================
   flow.css — Flow product site
   Minimal overrides on top of b-index.css
   ============================================================ */

/* ── Flow nav ─────────────────────────────────────────────── */
.flow-brand {
  display: flex;
  align-items: center;
  gap: var(--b-space-3);
  text-decoration: none;
}

.flow-brand__mark {
  width: 36px;
  height: 36px;
  background: var(--b-color-primary);
  border-radius: var(--b-radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.flow-brand__mark svg {
  width: 20px;
  height: 20px;
  color: #fff;
}

.flow-brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1;
}

.flow-brand__name {
  font-size: var(--b-font-size-lg);
  font-weight: var(--b-font-weight-bold);
  color: var(--b-text-primary);
  letter-spacing: -0.02em;
}

.flow-brand__by {
  font-size: var(--b-font-size-xs);
  color: var(--b-text-muted);
  font-weight: var(--b-font-weight-normal);
}

/* ── Hero ─────────────────────────────────────────────────── */
.flow-hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 80px;
  background: var(--b-hero-bg);
  position: relative;
  overflow: hidden;
}

.flow-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 15% 40%, rgba(34, 197, 94, 0.12) 0%, transparent 55%),
    radial-gradient(circle at 85% 60%, rgba(16, 185, 129, 0.08) 0%, transparent 55%);
  pointer-events: none;
}

.flow-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--b-space-16);
  align-items: center;
}

.flow-hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--b-space-2);
  background: var(--b-color-primary-subtle);
  border: 1px solid var(--b-border-primary);
  border-radius: var(--b-radius-full);
  padding: var(--b-space-1) var(--b-space-4);
  font-size: var(--b-font-size-xs);
  font-weight: var(--b-font-weight-semibold);
  color: var(--b-color-primary);
  letter-spacing: var(--b-letter-spacing-wide);
  text-transform: uppercase;
  margin-bottom: var(--b-space-6);
}

.flow-hero__eyebrow-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--b-color-primary);
}

/* ── Flow canvas visual ───────────────────────────────────── */
.flow-canvas {
  background: var(--b-bg-surface);
  border: 1px solid var(--b-border-default);
  border-radius: var(--b-radius-2xl);
  padding: var(--b-space-6);
  position: relative;
  min-height: 420px;
  overflow: hidden;
}

.flow-canvas__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 28px 28px;
}

.flow-nodes {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: var(--b-space-4);
  padding: var(--b-space-4);
}

.flow-row {
  display: flex;
  align-items: center;
  gap: var(--b-space-4);
  justify-content: center;
}

.flow-node {
  background: var(--b-bg-raised);
  border: 1px solid var(--b-border-default);
  border-radius: var(--b-radius-lg);
  padding: var(--b-space-3) var(--b-space-4);
  display: flex;
  align-items: center;
  gap: var(--b-space-2);
  font-size: var(--b-font-size-xs);
  font-weight: var(--b-font-weight-medium);
  color: var(--b-text-secondary);
  white-space: nowrap;
  min-width: 120px;
  justify-content: center;
}

.flow-node--trigger {
  border-color: var(--b-color-primary);
  background: var(--b-color-primary-subtle);
  color: var(--b-color-primary);
}

.flow-node--ai {
  border-color: rgba(99, 102, 241, 0.5);
  background: rgba(99, 102, 241, 0.08);
  color: #a5b4fc;
}

.flow-node--action {
  border-color: rgba(245, 158, 11, 0.4);
  background: rgba(245, 158, 11, 0.08);
  color: #fcd34d;
}

.flow-node--end {
  border-color: rgba(16, 185, 129, 0.4);
  background: rgba(16, 185, 129, 0.08);
  color: #6ee7b7;
}

.flow-node__icon {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

.flow-connector {
  width: 32px;
  height: 2px;
  background: linear-gradient(90deg, var(--b-border-default), var(--b-color-primary));
  position: relative;
  flex-shrink: 0;
}

.flow-connector::after {
  content: '';
  position: absolute;
  right: -1px;
  top: 50%;
  transform: translateY(-50%);
  width: 0;
  height: 0;
  border-left: 5px solid var(--b-color-primary);
  border-top: 3px solid transparent;
  border-bottom: 3px solid transparent;
}

.flow-connector--vertical {
  width: 2px;
  height: 24px;
  background: linear-gradient(180deg, var(--b-border-default), var(--b-color-primary));
  flex-shrink: 0;
}

.flow-connector--vertical::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 0;
  border-top: 5px solid var(--b-color-primary);
  border-left: 3px solid transparent;
  border-right: 3px solid transparent;
}

/* ── Table scroll wrapper ─────────────────────────────────── */
.flow-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

/* ── Stats strip ──────────────────────────────────────────── */
.flow-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--b-border-default);
  border: 1px solid var(--b-border-default);
  border-radius: var(--b-radius-xl);
  overflow: hidden;
  margin-top: var(--b-space-16);
}

.flow-stat {
  background: var(--b-bg-surface);
  padding: var(--b-space-6) var(--b-space-8);
  text-align: center;
}

.flow-stat__number {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: var(--b-font-weight-black);
  color: var(--b-color-primary);
  line-height: 1;
  margin-bottom: var(--b-space-2);
}

.flow-stat__label {
  font-size: var(--b-font-size-sm);
  color: var(--b-text-muted);
}

/* ── How it works steps ───────────────────────────────────── */
.flow-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--b-space-8);
  margin-top: var(--b-space-16);
  position: relative;
}

.flow-steps::before {
  content: '';
  position: absolute;
  top: 28px;
  left: calc(16.66% + var(--b-space-4));
  right: calc(16.66% + var(--b-space-4));
  height: 1px;
  background: linear-gradient(90deg, var(--b-color-primary), var(--b-border-default), var(--b-color-primary));
}

.flow-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--b-space-4);
  position: relative;
}

.flow-step__number {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  border: 2px solid var(--b-color-primary);
  background: var(--b-color-primary-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--b-font-size-xl);
  font-weight: var(--b-font-weight-black);
  color: var(--b-color-primary);
  position: relative;
  z-index: 1;
  flex-shrink: 0;
}

.flow-step__title {
  font-size: var(--b-font-size-lg);
  font-weight: var(--b-font-weight-semibold);
  color: var(--b-text-primary);
}

.flow-step__desc {
  font-size: var(--b-font-size-sm);
  color: var(--b-text-muted);
  line-height: var(--b-line-height-relaxed);
}

/* ── Comparison table ─────────────────────────────────────── */
.flow-compare {
  margin-top: var(--b-space-16);
  overflow-x: auto;
}

.flow-compare-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--b-font-size-sm);
}

.flow-compare-table th {
  padding: var(--b-space-4) var(--b-space-6);
  text-align: center;
  font-weight: var(--b-font-weight-semibold);
  border-bottom: 2px solid var(--b-border-default);
  color: var(--b-text-muted);
  font-size: var(--b-font-size-xs);
  letter-spacing: var(--b-letter-spacing-wide);
  text-transform: uppercase;
}

.flow-compare-table th.flow-compare-table__ours {
  color: var(--b-color-primary);
  border-bottom-color: var(--b-color-primary);
  background: var(--b-color-primary-subtle);
  border-radius: var(--b-radius-md) var(--b-radius-md) 0 0;
}

.flow-compare-table th:first-child {
  text-align: left;
}

.flow-compare-table td {
  padding: var(--b-space-4) var(--b-space-6);
  border-bottom: 1px solid var(--b-border-subtle);
  text-align: center;
  color: var(--b-text-muted);
  vertical-align: middle;
}

.flow-compare-table td:first-child {
  text-align: left;
  color: var(--b-text-secondary);
  font-weight: var(--b-font-weight-medium);
}

.flow-compare-table td.flow-compare-table__ours {
  background: rgba(34, 197, 94, 0.04);
  color: var(--b-text-primary);
}

.flow-check {
  color: var(--b-color-primary);
}

.flow-check svg,
.flow-cross svg {
  width: 18px;
  height: 18px;
  display: inline-block;
}

.flow-cross {
  color: var(--b-text-muted);
  opacity: 0.4;
}

/* ── Footer ───────────────────────────────────────────────── */
.flow-footer {
  border-top: 1px solid var(--b-border-subtle);
  padding: var(--b-space-10) 0;
  background: var(--b-bg-base);
}

.flow-footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--b-space-6);
}

.flow-footer__links {
  display: flex;
  gap: var(--b-space-6);
  flex-wrap: wrap;
}

.flow-footer__link {
  font-size: var(--b-font-size-sm);
  color: var(--b-text-muted);
  text-decoration: none;
  transition: color var(--b-transition-fast);
}

.flow-footer__link:hover {
  color: var(--b-color-primary);
}

.flow-footer__copy {
  font-size: var(--b-font-size-xs);
  color: var(--b-text-muted);
}

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 1024px) {
  .flow-hero__inner {
    grid-template-columns: 1fr;
  }

  .flow-canvas {
    min-height: 320px;
  }

  /* Stats: 4-col → 2-col at tablet */
  .flow-stats {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Sidebar pill-nav collapse */
  .b-sidebar h4 {
    display: none;
  }
  .b-sidebar ul,
  .b-sidebar nav ul {
    display: flex !important;
    flex-wrap: wrap !important;
    gap: var(--b-space-2) !important;
    padding: var(--b-space-4) 0 !important;
  }
  .b-sidebar a,
  .b-sidebar nav a {
    display: inline-block !important;
    padding: var(--b-space-1) var(--b-space-3) !important;
    border-radius: var(--b-radius-full) !important;
    background: var(--b-bg-surface) !important;
    border: 1px solid var(--b-border-default) !important;
    font-size: var(--b-font-size-xs) !important;
    white-space: nowrap !important;
  }
}

@media (max-width: 768px) {
  .flow-stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .flow-steps {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 480px) {
  .flow-stats {
    grid-template-columns: 1fr 1fr;
  }
}