/* Hero */
.hero {
  position: relative;
  min-height: 100vh;
  padding: 140px 0 60px;
  display: flex; align-items: flex-start;
  overflow: hidden;
}
.hero-canvas {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  z-index: 0;
  opacity: 0.95;
}
.hero-content {
  position: relative; z-index: 2;
  text-align: center;
  max-width: 920px;
  margin: 0 auto;
}
.hero-content .eyebrow { margin-bottom: 28px; }
.hero-sub {
  font-size: clamp(17px, 1.8vw, 22px);
  max-width: 640px;
  margin: 28px auto 0;
  color: var(--text-dim);
}
.hero-cta {
  display: flex; gap: 12px; justify-content: center;
  margin-top: 40px; flex-wrap: wrap;
}
.hero-protocols {
  display: flex; gap: 8px; justify-content: center; flex-wrap: wrap;
  margin-top: 220px;
  max-width: 720px; margin-left: auto; margin-right: auto;
  position: relative;
}
@media (max-width: 720px) { .hero-protocols { margin-top: 160px; } }
.protocol-pill {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 7px 14px;
  font-size: 12px; letter-spacing: 0.06em;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--text-dim);
  transition: all 0.2s ease;
}
.protocol-pill:hover { background: rgba(42,139,242,0.10); color: #BAE0FF; border-color: rgba(42,139,242,0.4); }
.protocol-dot {
  width: 5px; height: 5px; border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 8px var(--cyan);
}

/* Section: What is EDI? */
.what-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
@media (max-width: 900px) { .what-grid { grid-template-columns: 1fr; gap: 48px; } }
.what-bullets { display: flex; flex-direction: column; gap: 24px; margin-top: 32px; }
.what-bullet {
  display: flex; gap: 16px; align-items: flex-start;
}
.what-bullet-num {
  flex: 0 0 auto;
  width: 32px; height: 32px; border-radius: 8px;
  background: rgba(42,139,242,0.12);
  border: 1px solid rgba(42,139,242,0.3);
  display: grid; place-items: center;
  font-family: 'Geist Mono', monospace; font-size: 13px; font-weight: 600;
  color: #BAE0FF;
}
.what-bullet h4 { font-size: 17px; margin-bottom: 6px; color: var(--text); }
.what-bullet p { font-size: 15px; }

/* EDI translation visual */
.edi-translate {
  position: relative;
  background: linear-gradient(180deg, rgba(42,139,242,0.06), rgba(42,139,242,0.01));
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 28px;
  overflow: hidden;
}
.edi-translate::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(56,189,248,0.6), transparent);
}
.translate-row {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 16px; align-items: center;
  padding: 14px 0;
}
.translate-row + .translate-row { border-top: 1px dashed var(--line); }
.doc-chip {
  font-family: 'Geist Mono', monospace;
  font-size: 11px; padding: 8px 12px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--text-dim);
  display: flex; align-items: center; gap: 8px;
}
.doc-chip-label { color: var(--text); font-weight: 500; }
.doc-arrow {
  display: flex; align-items: center; gap: 6px;
  color: var(--cyan);
  font-family: 'Geist Mono', monospace;
  font-size: 10px; letter-spacing: 0.1em;
}
.doc-arrow svg { animation: slideRight 2s ease-in-out infinite; }
@keyframes slideRight {
  0%, 100% { transform: translateX(0); opacity: 1; }
  50% { transform: translateX(4px); opacity: 0.6; }
}

/* Flow diagram (full FTP <-> API live) */
.flow-stage {
  position: relative;
  background:
    radial-gradient(ellipse 80% 60% at 50% 50%, rgba(42,139,242,0.10), transparent 70%),
    linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.005));
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 48px;
  min-height: 480px;
  overflow: hidden;
}
@media (max-width: 720px) { .flow-stage { padding: 24px; min-height: 720px; } }

.flow-systems {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 32px;
  align-items: center;
  position: relative;
  z-index: 2;
}
@media (max-width: 900px) {
  .flow-systems { grid-template-columns: 1fr; gap: 48px; }
}

.system-card {
  background: linear-gradient(180deg, rgba(255,255,255,0.05), rgba(255,255,255,0.01));
  border: 1px solid var(--line-strong);
  border-radius: 16px;
  padding: 20px;
  position: relative;
}
.system-card.outgoing { border-color: rgba(56,189,248,0.3); }
.system-card.incoming { border-color: rgba(125,211,252,0.3); }
.system-header {
  display: flex; align-items: center; gap: 12px;
  margin-bottom: 16px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}
.system-icon {
  width: 38px; height: 38px; border-radius: 10px;
  background: rgba(42,139,242,0.12);
  border: 1px solid rgba(42,139,242,0.3);
  display: grid; place-items: center;
  color: #BAE0FF;
}
.system-name { font-weight: 600; font-size: 15px; }
.system-meta { font-family: 'Geist Mono', monospace; font-size: 11px; color: var(--text-faint); margin-top: 2px; }
.system-tag {
  margin-left: auto;
  font-family: 'Geist Mono', monospace;
  font-size: 10px;
  padding: 4px 8px;
  border-radius: 6px;
  background: rgba(255,255,255,0.04);
  color: var(--text-dim);
  letter-spacing: 0.1em;
}
.system-payload {
  background: var(--bg-deep);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px 14px;
  font-family: 'Geist Mono', monospace;
  font-size: 11px;
  line-height: 1.65;
  color: var(--text-dim);
  position: relative;
  overflow: hidden;
  min-height: 140px;
}
.system-payload .key { color: #7DD3FC; }
.system-payload .str { color: #86EFAC; }
.system-payload .num { color: #FBBF24; }
.system-payload .punct { color: var(--text-faint); }
.payload-line { white-space: nowrap; overflow: hidden; }
.payload-line.live::after {
  content: '|';
  display: inline-block;
  margin-left: 2px;
  color: #38BDF8;
  animation: blink 1s steps(2) infinite;
}
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }

.tf-hub {
  display: flex; flex-direction: column; align-items: center; gap: 12px;
  padding: 20px;
}
.tf-hub-core {
  position: relative;
  width: 96px; height: 96px;
  border-radius: 24px;
  background: linear-gradient(135deg, #2A8BF2, #1E5FD9);
  display: grid; place-items: center;
  box-shadow:
    0 0 0 1px rgba(255,255,255,0.15) inset,
    0 0 60px rgba(42,139,242,0.6),
    0 16px 40px rgba(42,139,242,0.4);
  animation: hubPulse 3s ease-in-out infinite;
}
@keyframes hubPulse {
  0%, 100% { box-shadow: 0 0 0 1px rgba(255,255,255,0.15) inset, 0 0 60px rgba(42,139,242,0.5), 0 16px 40px rgba(42,139,242,0.4); }
  50% { box-shadow: 0 0 0 1px rgba(255,255,255,0.2) inset, 0 0 90px rgba(42,139,242,0.8), 0 16px 40px rgba(42,139,242,0.6); }
}
.tf-hub-core::before, .tf-hub-core::after {
  content: ''; position: absolute; inset: -8px;
  border: 1px solid rgba(56,189,248,0.4);
  border-radius: 28px;
  animation: ripple 2.4s ease-out infinite;
}
.tf-hub-core::after { animation-delay: 1.2s; }
@keyframes ripple {
  0% { transform: scale(1); opacity: 0.7; }
  100% { transform: scale(1.6); opacity: 0; }
}
.tf-hub-core svg { width: 44px; height: 44px; color: white; position: relative; z-index: 2; }
.tf-hub-label {
  font-family: 'Geist Mono', monospace;
  font-size: 11px; letter-spacing: 0.16em;
  color: #7DD3FC;
  text-transform: uppercase;
}
.tf-hub-status {
  display: flex; flex-direction: column; gap: 4px;
  font-family: 'Geist Mono', monospace; font-size: 10px;
  color: var(--text-faint);
  align-items: center;
}
.tf-hub-status .row {
  display: flex; align-items: center; gap: 6px;
}
.tf-hub-status .dot {
  width: 5px; height: 5px; border-radius: 50%;
  background: var(--mint);
  box-shadow: 0 0 6px var(--mint);
}

/* Connector SVGs (between systems and hub) */
.flow-connector {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 1;
}

/* Beyond invoices grid */
.docs-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
@media (max-width: 1100px) { .docs-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .docs-grid { grid-template-columns: 1fr; } }
.doc-card {
  background: linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.01));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}
.doc-card:hover {
  border-color: rgba(42,139,242,0.4);
  transform: translateY(-2px);
  background: linear-gradient(180deg, rgba(42,139,242,0.08), rgba(42,139,242,0.02));
}
.doc-card-icon {
  width: 40px; height: 40px; border-radius: 10px;
  background: rgba(42,139,242,0.12);
  border: 1px solid rgba(42,139,242,0.25);
  display: grid; place-items: center;
  color: #BAE0FF;
  margin-bottom: 16px;
}
.doc-card h4 { font-size: 16px; margin-bottom: 4px; }
.doc-card p { font-size: 13px; color: var(--text-dim); }

/* Middleman: how we fit */
.middle-stack {
  display: grid;
  grid-template-columns: 1fr 420px 1fr;
  gap: 32px;
  align-items: stretch;
}
@media (max-width: 1000px) {
  .middle-stack { grid-template-columns: 1fr; }
}
.layer-stack {
  display: flex; flex-direction: column; gap: 12px;
}
.layer {
  background: linear-gradient(90deg, rgba(255,255,255,0.05), rgba(255,255,255,0.01));
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px 20px;
  display: flex; align-items: center; gap: 14px;
  transition: all 0.3s ease;
}
.layer:hover {
  background: linear-gradient(90deg, rgba(42,139,242,0.10), rgba(42,139,242,0.02));
  border-color: rgba(42,139,242,0.4);
  transform: translateX(2px);
}
.layer-icon {
  width: 32px; height: 32px; border-radius: 8px;
  background: rgba(42,139,242,0.12);
  border: 1px solid rgba(42,139,242,0.3);
  display: grid; place-items: center;
  color: #BAE0FF;
  flex: 0 0 auto;
}
.layer-text { flex: 1; }
.layer-title { font-size: 14px; font-weight: 500; color: var(--text); }
.layer-desc { font-size: 12px; color: var(--text-dim); margin-top: 2px; }

/* Onboarding steps */
.steps-track {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  position: relative;
  margin-top: 16px;
}
@media (max-width: 900px) {
  .steps-track { grid-template-columns: 1fr; }
}
.step {
  position: relative;
  padding: 32px 28px;
  background: linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.01));
  border: 1px solid var(--line);
  border-right: none;
  transition: all 0.3s ease;
}
.step:first-child { border-top-left-radius: var(--radius-lg); border-bottom-left-radius: var(--radius-lg); }
.step:last-child { border-right: 1px solid var(--line); border-top-right-radius: var(--radius-lg); border-bottom-right-radius: var(--radius-lg); }
@media (max-width: 900px) {
  .step { border-right: 1px solid var(--line); border-bottom: none; }
  .step:first-child { border-radius: var(--radius-lg) var(--radius-lg) 0 0; }
  .step:last-child { border-bottom: 1px solid var(--line); border-radius: 0 0 var(--radius-lg) var(--radius-lg); }
  .step:not(:last-child) { border-bottom: none; }
}
.step:hover {
  background: linear-gradient(180deg, rgba(42,139,242,0.10), rgba(42,139,242,0.02));
  z-index: 2;
}
.step-num {
  display: inline-flex; align-items: center;
  font-family: 'Geist Mono', monospace; font-size: 11px;
  color: #7DD3FC; letter-spacing: 0.18em;
  margin-bottom: 18px;
}
.step-num::before {
  content: ''; display: inline-block;
  width: 28px; height: 1px; background: rgba(56,189,248,0.5); margin-right: 10px;
}
.step-icon {
  width: 44px; height: 44px; border-radius: 12px;
  background: var(--grad-2);
  display: grid; place-items: center;
  color: white;
  margin-bottom: 18px;
  box-shadow: 0 6px 20px rgba(42,139,242,0.4);
}
.step h3 { font-size: 19px; margin-bottom: 8px; }
.step p { font-size: 14px; }

/* Connector arrow between steps */
.step-connector {
  position: absolute;
  top: 50%;
  right: -12px;
  width: 24px; height: 24px;
  background: var(--bg);
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  display: grid; place-items: center;
  z-index: 3;
  color: #7DD3FC;
  transform: translateY(-50%);
}
@media (max-width: 900px) { .step-connector { display: none; } }

/* Security/formats panel */
.specs-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 24px;
}
@media (max-width: 900px) { .specs-grid { grid-template-columns: 1fr; } }
.specs-card {
  background: linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.01));
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 32px;
}
.specs-card h3 { margin-bottom: 8px; }
.specs-card > p { margin-bottom: 24px; }
.format-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}
.format-tag {
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-family: 'Geist Mono', monospace;
  font-size: 12px;
  color: var(--text-dim);
  text-align: center;
  transition: all 0.2s ease;
  background: rgba(255,255,255,0.02);
}
.format-tag:hover { color: #BAE0FF; border-color: rgba(42,139,242,0.4); background: rgba(42,139,242,0.06); }
.security-list {
  display: flex; flex-direction: column; gap: 14px;
}
.security-item {
  display: flex; gap: 12px; align-items: flex-start;
}
.security-check {
  width: 22px; height: 22px; border-radius: 50%;
  background: rgba(52,211,153,0.15);
  border: 1px solid rgba(52,211,153,0.4);
  display: grid; place-items: center;
  color: var(--mint);
  flex: 0 0 auto;
}
.security-item-text { font-size: 14px; }
.security-item-text strong { color: var(--text); font-weight: 500; }
.security-item-text span { color: var(--text-dim); }

/* FAQ */
.faq-list { max-width: 760px; margin: 0 auto; }
.faq-item {
  border-top: 1px solid var(--line);
  padding: 4px 0;
}
.faq-item:last-child { border-bottom: 1px solid var(--line); }
.faq-q {
  width: 100%; text-align: left;
  background: none; border: none; padding: 22px 4px;
  display: flex; justify-content: space-between; align-items: center;
  cursor: pointer; color: var(--text);
  font-family: inherit; font-size: 17px; font-weight: 500;
}
.faq-q:hover { color: #BAE0FF; }
.faq-toggle {
  width: 28px; height: 28px; border-radius: 50%;
  border: 1px solid var(--line-strong);
  display: grid; place-items: center;
  flex: 0 0 auto;
  transition: all 0.3s ease;
  color: var(--text-dim);
}
.faq-item.open .faq-toggle { transform: rotate(45deg); background: var(--primary); border-color: var(--primary); color: white; }
.faq-a {
  max-height: 0; overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
  font-size: 15px; color: var(--text-dim);
  padding: 0 4px;
}
.faq-item.open .faq-a {
  max-height: 400px;
  padding: 0 4px 22px;
}

/* CTA */
.final-cta {
  position: relative;
  text-align: center;
  padding: 80px 32px;
  border-radius: 32px;
  background:
    radial-gradient(ellipse 60% 80% at 50% 0%, rgba(42,139,242,0.25), transparent 70%),
    linear-gradient(180deg, rgba(42,139,242,0.10), rgba(42,139,242,0.02));
  border: 1px solid rgba(42,139,242,0.3);
  overflow: hidden;
}
.final-cta::before {
  content: ''; position: absolute; top: 0; left: 50%; transform: translateX(-50%);
  width: 60%; height: 1px;
  background: linear-gradient(90deg, transparent, #38BDF8, transparent);
}
.final-cta h2 { margin-bottom: 16px; }
.final-cta p { max-width: 560px; margin: 0 auto 32px; font-size: 18px; }
.final-cta .hero-cta { margin-top: 0; }