/* Workflow — full-bleed cinematic band. One edge-to-edge photograph of a real
   document handoff under a brand scrim; editorial copy sits left, and a glass
   timeline dock along the bottom carries the five connected billing moments
   with a drawn gradient route and a travelling pulse. */

.nb-flow-section { position: relative; padding: 0 0 64px; background: #f8f9ff; }

.nb-flow-band {
  position: relative; display: flex; flex-direction: column;
  justify-content: space-between; min-height: clamp(560px, 74vh, 780px);
  overflow: hidden; background: #0a0f1e;
}
.nb-flow-backdrop {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; object-position: center 30%;
  transform: scale(1.01);
  transition: transform 8s cubic-bezier(.2,.75,.2,1);
}
.nb-flow-band:hover .nb-flow-backdrop { transform: scale(1.05); }
.nb-flow-shade {
  position: absolute; inset: 0;
  background:
    linear-gradient(100deg, rgba(10,15,30,.86) 0%, rgba(10,15,30,.58) 30%, rgba(10,15,30,.22) 58%, rgba(10,15,30,.12) 100%),
    linear-gradient(180deg, rgba(10,15,30,.32) 0%, transparent 30%, transparent 50%, rgba(10,15,30,.84) 100%),
    linear-gradient(250deg, rgba(27,58,140,.3), transparent 55%);
}

/* Editorial copy */
.nb-flow-inner { position: relative; z-index: 1; padding: clamp(84px, 11vh, 140px) 0 36px; }
.nb-flow-copy { max-width: 560px; }
.nb-flow-section .nb-section-label { color: #93c5fd; }
.nb-flow-copy h2 {
  margin: 14px 0 16px; color: #fff;
  font: 700 clamp(1.9rem, 3.2vw, 3rem)/1.08 "Sora", sans-serif;
  letter-spacing: -.045em; text-shadow: 0 2px 26px rgba(10,15,30,.45);
}
.nb-flow-copy > p {
  max-width: 430px; margin: 0 0 22px; color: rgba(248,249,255,.94);
  font-size: .95rem; line-height: 1.7;
}
.nb-flow-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 9px 14px; border: 1px solid rgba(147,197,253,.32); border-radius: 99px;
  background: rgba(10,15,30,.42); color: #dbe7fa;
  font-size: .68rem; font-weight: 650; letter-spacing: .02em;
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
}
.nb-flow-badge i { color: #60a5fa; font-size: .9rem; }

/* Glass timeline dock */
.nb-flow-dock-wrap { position: relative; z-index: 1; padding-bottom: 38px; }
.nb-flow-dock {
  position: relative; display: grid; grid-template-columns: repeat(5, 1fr);
  gap: 10px; margin: 0; padding: 22px 26px 24px; list-style: none;
  border: 1px solid rgba(147,197,253,.22); border-radius: 20px;
  background: rgba(10,15,30,.58);
  box-shadow: 0 24px 60px rgba(2,6,18,.35);
  backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px);
}
.nb-flow-track { position: absolute; top: 43px; right: 12%; left: 12%; height: 2px; background: rgba(147,197,253,.16); }
.nb-flow-track i {
  display: block; width: 100%; height: 100%;
  background: linear-gradient(90deg, #2563eb, #34d399);
  transform-origin: left;
  transition: transform 1.8s cubic-bezier(.2,.7,.2,1) .4s;
}
.js .nb-flow-track i { transform: scaleX(0); }
.js .nb-flow-band.is-visible .nb-flow-track i { transform: scaleX(1); }
.nb-flow-track b {
  position: absolute; top: 50%; left: 0; width: 9px; height: 9px;
  margin-top: -4.5px; border-radius: 50%; background: #93c5fd;
  box-shadow: 0 0 12px 2px rgba(96,165,250,.75);
  animation: nbFlowPulse 7s linear infinite 2.4s;
  opacity: 0;
}
.nb-flow-stage { position: relative; display: grid; justify-items: center; text-align: center; }
.nb-flow-node {
  display: grid; place-items: center; width: 44px; height: 44px;
  border: 1px solid rgba(147,197,253,.35); border-radius: 50%;
  background: rgba(13,25,48,.9); color: #93c5fd; font-size: 1rem;
  box-shadow: 0 10px 26px rgba(2,6,18,.4);
  transition: transform .3s ease, border-color .3s ease, box-shadow .3s ease;
}
.nb-flow-stage:hover .nb-flow-node {
  transform: translateY(-4px); border-color: rgba(147,197,253,.7);
  box-shadow: 0 14px 32px rgba(2,6,18,.5), 0 0 0 5px rgba(96,165,250,.12);
}
.nb-flow-stage small {
  margin-top: 12px; color: #b8c7dc;
  font: 500 .58rem "IBM Plex Mono", monospace; letter-spacing: .1em;
}
.nb-flow-stage strong { margin-top: 3px; color: #fff; font-size: .78rem; font-weight: 650; letter-spacing: .01em; }
.nb-flow-stage.is-fbr .nb-flow-node { color: #f0d98b; border-color: rgba(240,217,139,.42); }
.nb-flow-stage.is-fbr:hover .nb-flow-node { border-color: rgba(240,217,139,.75); box-shadow: 0 14px 32px rgba(2,6,18,.5), 0 0 0 5px rgba(201,168,76,.14); }
.nb-flow-stage.is-paid .nb-flow-node { color: #34d399; border-color: rgba(52,211,153,.42); }
.nb-flow-stage.is-paid:hover .nb-flow-node { border-color: rgba(52,211,153,.75); box-shadow: 0 14px 32px rgba(2,6,18,.5), 0 0 0 5px rgba(5,150,105,.14); }

/* Closing line on the Pearl canvas. Small/caption tier: same size/color as
   the Problem-footer note and Closing CTA trust row — was smaller (.78rem)
   and the washed-out gray. */
.nb-flow-note {
  margin: 30px auto 0; color: #475569; font-size: .8rem; text-align: center;
}
.nb-flow-note i { margin-right: 5px; color: #c9a84c; }

@keyframes nbFlowPulse {
  0% { left: 0; opacity: 0; }
  5% { opacity: 1; }
  95% { opacity: 1; }
  100% { left: 100%; opacity: 0; }
}

@media (max-width: 991.98px) {
  .nb-flow-dock { padding: 18px 18px 20px; gap: 8px; }
  .nb-flow-node { width: 38px; height: 38px; font-size: .9rem; }
  .nb-flow-track { top: 37px; }
  .nb-flow-stage small { margin-top: 10px; font-size: .54rem; }
  .nb-flow-stage strong { font-size: .68rem; }
}

@media (max-width: 820px) {
  .nb-flow-section { padding-bottom: 56px; }
  .nb-flow-band { min-height: 0; }
  .nb-flow-backdrop { object-position: 62% center; }
  .nb-flow-shade {
    background:
      linear-gradient(100deg,rgba(10,15,30,.95) 0%,rgba(10,15,30,.82) 48%,rgba(10,15,30,.52) 100%),
      linear-gradient(180deg,rgba(10,15,30,.24) 0%,transparent 32%,rgba(10,15,30,.9) 100%),
      linear-gradient(250deg,rgba(27,58,140,.26),transparent 58%);
  }
  .nb-flow-inner {
    width: 100%;
    padding: 72px max(22px,env(safe-area-inset-right)) 28px max(22px,env(safe-area-inset-left));
  }
  .nb-flow-copy { width: 100%; max-width: 520px; }
  .nb-flow-copy h2 br { display: none; }
  .nb-flow-copy h2 { max-width: 12ch; font-size: clamp(1.9rem,7.5vw,2.55rem); }
  .nb-flow-copy > p { max-width: 36ch; overflow-wrap: anywhere; }
  .nb-flow-dock-wrap {
    width: 100%;
    padding: 0 max(22px,env(safe-area-inset-right)) 26px max(22px,env(safe-area-inset-left));
  }
  .nb-flow-dock { width: 100%; grid-template-columns: 1fr; gap: 0; padding: 16px 18px; }
  .nb-flow-track { top: 40px; right: auto; bottom: 40px; left: 39px; width: 2px; height: auto; }
  .nb-flow-track i { background: linear-gradient(180deg, #2563eb, #34d399); transform-origin: top; }
  .js .nb-flow-track i { transform: scaleY(0); }
  .js .nb-flow-band.is-visible .nb-flow-track i { transform: scaleY(1); }
  .nb-flow-track b { display: none; }
  .nb-flow-stage {
    grid-template-columns: 44px 1fr; column-gap: 14px; align-items: center;
    justify-items: start; padding: 11px 0; text-align: left;
  }
  .nb-flow-node { grid-row: 1 / span 2; }
  .nb-flow-stage small { grid-column: 2; margin-top: 0; }
  .nb-flow-stage strong { grid-column: 2; margin-top: 2px; font-size: .78rem; }
  .nb-flow-note { padding-inline: 22px; }
}

@media (max-width: 479.98px) {
  .nb-flow-inner { padding: 62px max(18px,env(safe-area-inset-right)) 24px max(18px,env(safe-area-inset-left)); }
  .nb-flow-copy h2 { max-width: 11ch; font-size: clamp(1.85rem,8.4vw,2.3rem); }
  .nb-flow-copy > p { max-width: 31ch; font-size: .9rem; line-height: 1.65; }
  .nb-flow-badge { max-width: 100%; white-space: normal; font-size: .62rem; }
  .nb-flow-dock-wrap { padding: 0 max(14px,env(safe-area-inset-right)) 22px max(14px,env(safe-area-inset-left)); }
  .nb-flow-dock { padding: 14px; border-radius: 17px; }
  .nb-flow-track { top: 36px; bottom: 36px; left: 33px; }
  .nb-flow-stage { grid-template-columns: 38px minmax(0,1fr); column-gap: 12px; padding: 10px 0; }
  .nb-flow-node { width: 36px; height: 36px; }
  .nb-flow-stage small,.nb-flow-stage strong { min-width: 0; white-space: normal; }
}

@media (prefers-reduced-motion: reduce) {
  .nb-flow-backdrop { transition: none !important; transform: none !important; }
  .js .nb-flow-track i { transform: none !important; }
  .nb-flow-track b { display: none; }
  .nb-flow-node { transition: none !important; }
}