/* ============================================================
   47NETWORK — PRODUCT DETAIL v3
   Rich: hero mockup, feature strips, how-it-works, specs
   ============================================================ */

/* ── HERO SPLIT ──────────────────────────────────────────── */
.product-hero-split {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 4rem;
  align-items: center;
  padding-top: calc(var(--nav-h) + 5rem);
  padding-bottom: 5rem;
  position: relative;
}

/* ── MOCKUP PANEL ────────────────────────────────────────── */
.product-mockup {
  background: rgba(8,10,30,.9);
  border: 1px solid rgba(92,80,214,.4);
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 40px 100px rgba(0,0,0,.5), 0 0 0 1px rgba(66,183,250,.05);
  animation: mockFloat 6s ease-in-out infinite;
}
@keyframes mockFloat {
  0%,100% { transform: translateY(0) rotate(-1deg); }
  50%      { transform: translateY(-12px) rotate(-.5deg); }
}

.mockup-bar {
  display: flex;
  align-items: center;
  gap: .5rem;
  padding: .75rem 1rem;
  background: rgba(92,80,214,.1);
  border-bottom: 1px solid rgba(92,80,214,.2);
}
.mockup-dot { width: 10px; height: 10px; border-radius: 50%; }
.mockup-title {
  font-family: var(--font-mono);
  font-size: .7rem;
  color: var(--muted);
  margin-left: .25rem;
  flex: 1;
  text-align: center;
}

.mockup-body { padding: 1.5rem; display: flex; flex-direction: column; gap: .625rem; }

.mockup-row {
  display: flex;
  align-items: center;
  gap: .875rem;
  padding: .75rem 1rem;
  border-radius: 8px;
  background: rgba(34,34,67,.4);
  border: 1px solid rgba(92,80,214,.12);
  font-family: var(--font-mono);
  font-size: .73rem;
}
.mockup-row-icon { flex-shrink: 0; width: 20px; text-align: center; }
.mockup-row-label { flex: 1; }
.mockup-row-val { color: var(--neon-cyan); font-size: .68rem; }
.mockup-row-val.green { color: #4ade80; }
.mockup-row-val.violet { color: #9d94ff; }
.mockup-row-val.amber { color: var(--ember); }
.mockup-row.highlight { background: rgba(92,80,214,.15); border-color: rgba(92,80,214,.35); }

.mockup-divider { height: 1px; background: rgba(92,80,214,.12); margin: .25rem 0; }

/* ── FEATURE STRIP ───────────────────────────────────────── */
.feature-strip {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
  margin-top: 2rem;
}

.feature-card {
  padding: 2rem;
  position: relative;
  overflow: hidden;
  transition: border-color .3s, transform .25s, box-shadow .3s;
}
.feature-card:hover {
  border-color: rgba(66,183,250,.35);
  transform: translateY(-3px);
  box-shadow: 0 16px 40px rgba(92,80,214,.14);
}
.feature-card::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--grad-neon);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .35s;
}
.feature-card:hover::after { transform: scaleX(1); }
.feature-card-icon { font-size: 1.625rem; margin-bottom: 1rem; }
.feature-card h4 { font-family: var(--font-display); font-size: 1rem; font-weight: 700; margin-bottom: .5rem; letter-spacing: -.01em; }
.feature-card p { font-size: .875rem; color: var(--muted); line-height: 1.7; margin: 0; }

/* ── HOW IT WORKS ────────────────────────────────────────── */
.how-section {
  background: rgba(34,34,67,.1);
  padding: clamp(4rem,8vw,7rem) 0;
}

.how-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  margin-top: 3rem;
  position: relative;
}
.how-steps::before {
  content: '';
  position: absolute;
  top: 26px;
  left: calc(12.5% + .5rem);
  right: calc(12.5% + .5rem);
  height: 1px;
  background: linear-gradient(90deg, var(--neon-cyan), var(--neon-violet), var(--neon-magenta));
  opacity: .25;
}

.how-step { text-align: center; position: relative; }
.how-step-num {
  width: 52px; height: 52px;
  border-radius: 50%;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-mono);
  font-size: .75rem;
  color: var(--neon-cyan);
  margin: 0 auto 1.25rem;
  position: relative;
  z-index: 1;
  backdrop-filter: var(--glass-blur);
  transition: background .2s, border-color .2s, box-shadow .2s;
}
.how-step:hover .how-step-num {
  background: rgba(66,183,250,.15);
  border-color: rgba(66,183,250,.5);
  box-shadow: 0 0 20px rgba(66,183,250,.2);
}
.how-step-icon { font-size: 1.5rem; margin-bottom: .875rem; }
.how-step h4 { font-family: var(--font-display); font-size: .9375rem; font-weight: 700; margin-bottom: .375rem; }
.how-step p { font-size: .8125rem; color: var(--muted); line-height: 1.65; }

/* ── TECH SPEC TABLE ─────────────────────────────────────── */
.spec-section { padding: clamp(4rem,8vw,7rem) 0; }
.spec-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 1.25rem; margin-top: 2.5rem; }
.spec-block { padding: 2rem; }
.spec-block h4 { font-family: var(--font-mono); font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; color: var(--neon-cyan); margin-bottom: 1.25rem; }
.spec-row { display: flex; justify-content: space-between; align-items: baseline; padding: .625rem 0; border-bottom: 1px solid rgba(92,80,214,.07); font-size: .875rem; gap: 1rem; }
.spec-row:last-child { border-bottom: none; }
.spec-key { color: var(--muted); flex-shrink: 0; }
.spec-val { font-family: var(--font-mono); font-size: .8rem; text-align: right; }
.spec-val.green { color: #4ade80; }
.spec-val.cyan  { color: var(--neon-cyan); }

/* ── SIDEBAR ─────────────────────────────────────────────── */
.product-detail-grid {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 3.5rem;
  align-items: start;
}
.product-detail-sidebar {
  position: sticky;
  top: calc(var(--nav-h) + 2rem);
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}
.sidebar-card { padding: 1.75rem; }
.sidebar-card h5 { font-family: var(--font-mono); font-size: .68rem; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); margin-bottom: 1rem; }
.sidebar-stat { display: flex; justify-content: space-between; align-items: center; padding: .5rem 0; border-bottom: 1px solid rgba(92,80,214,.07); font-size: .875rem; }
.sidebar-stat:last-child { border-bottom: none; }
.sidebar-stat-key { color: var(--muted); }
.sidebar-stat-val { font-family: var(--font-mono); font-size: .8rem; color: var(--neon-cyan); }
.related-link { display: flex; align-items: center; gap: .75rem; padding: .625rem 0; border-bottom: 1px solid rgba(92,80,214,.07); font-size: .875rem; color: var(--muted); text-decoration: none; transition: color .15s; }
.related-link:last-child { border-bottom: none; }
.related-link:hover { color: var(--white); }
.related-link .rel-arrow { margin-left: auto; opacity: 0; transform: translateX(-4px); transition: opacity .15s, transform .15s; }
.related-link:hover .rel-arrow { opacity: 1; transform: translateX(0); }

/* ── CTA SECTION ─────────────────────────────────────────── */
.product-cta { padding: 5rem 0; }
.product-cta-inner {
  padding: 4rem;
  text-align: center;
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, rgba(92,80,214,.12), rgba(34,34,67,.5), rgba(225,89,217,.08));
}

/* ── RESPONSIVE ──────────────────────────────────────────── */
@media (max-width: 1100px) {
  .product-hero-split { grid-template-columns: 1fr; padding-top: calc(var(--nav-h) + 4rem); }
  .product-mockup { animation: none; transform: none; max-width: 480px; }
}
@media (max-width: 1024px) {
  .product-detail-grid { grid-template-columns: 1fr; }
  .product-detail-sidebar { position: static; }
}
@media (max-width: 768px) {
  .feature-strip { grid-template-columns: 1fr; }
  .how-steps { grid-template-columns: repeat(2,1fr); }
  .how-steps::before { display: none; }
  .spec-grid { grid-template-columns: 1fr; }
  .product-cta-inner { padding: 2.5rem 1.75rem; }
}
@media (max-width: 480px) {
  .how-steps { grid-template-columns: 1fr; }
}

/* ── PRICING SECTION ──────────────────────────────────── */
.pricing-section { padding: 5rem 0; background: rgba(92,80,214,.02); }
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  margin-top: 2.5rem;
  align-items: start;
}
.price-card {
  display: flex;
  flex-direction: column;
  padding: 2rem;
  position: relative;
  overflow: hidden;
  transition: transform .25s cubic-bezier(.16,1,.3,1), border-color .2s, box-shadow .25s;
}
.price-card:hover { transform: translateY(-5px); box-shadow: 0 24px 48px rgba(92,80,214,.14); }
.price-card.featured { border-color: rgba(92,80,214,.45); background: linear-gradient(160deg, rgba(92,80,214,.1) 0%, rgba(66,183,250,.05) 100%); }
.price-card.featured::before {
  content: 'Most Popular';
  position: absolute; top: -1px; left: 50%; transform: translateX(-50%);
  background: linear-gradient(90deg, #5C50D6, #42B7FA);
  color: #fff; font-family: var(--font-mono); font-size: .65rem; letter-spacing: .1em;
  padding: .25rem .875rem; border-radius: 0 0 8px 8px; white-space: nowrap;
}
.price-tier { font-family: var(--font-mono); font-size: .72rem; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); margin-bottom: .75rem; }
.price-amount { font-family: var(--font-display); font-size: 2.75rem; font-weight: 900; letter-spacing: -.04em; line-height: 1; margin-bottom: .25rem; }
.price-amount sup { font-size: 1.25rem; vertical-align: super; letter-spacing: 0; font-weight: 700; }
.price-cadence { font-family: var(--font-mono); font-size: .78rem; color: var(--muted); margin-bottom: 1.5rem; }
.price-desc { font-size: .875rem; color: var(--muted); line-height: 1.65; margin-bottom: 1.5rem; flex: 1; }
.price-features { list-style: none; padding: 0; margin: 0 0 1.75rem; display: flex; flex-direction: column; gap: .5rem; }
.price-features li { display: flex; align-items: flex-start; gap: .625rem; font-size: .875rem; color: var(--muted); line-height: 1.5; }
.price-features li::before { content: '✓'; color: #4ADE80; font-size: .75rem; flex-shrink: 0; margin-top: .1rem; }
.price-features li.unavail::before { content: '—'; color: rgba(136,136,170,.3); }
.price-features li strong { color: var(--white); font-weight: 600; }

/* ── FAQ SECTION ──────────────────────────────────────── */
.faq-section { padding: 5rem 0; }
.faq-list { display: flex; flex-direction: column; gap: .625rem; margin-top: 2.5rem; max-width: 760px; }
.faq-item { border: 1px solid var(--glass-border); border-radius: 12px; background: var(--glass-bg); overflow: hidden; transition: border-color .2s; }
.faq-item.open { border-color: rgba(92,80,214,.35); }
.faq-q {
  width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: 1.125rem 1.5rem; background: transparent; border: none;
  color: var(--white); font-family: var(--font-body); font-size: .9375rem; font-weight: 600;
  text-align: left; cursor: pointer; transition: color .15s;
}
.faq-q:hover { color: var(--neon-cyan); }
.faq-chevron {
  width: 20px; height: 20px; border-radius: 50%; border: 1px solid var(--glass-border);
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
  font-size: .6rem; transition: transform .25s, border-color .2s, background .2s;
}
.faq-item.open .faq-chevron { transform: rotate(180deg); border-color: rgba(92,80,214,.4); background: rgba(92,80,214,.12); }
.faq-a { display: none; padding: 0 1.5rem 1.25rem; font-size: .9375rem; color: var(--muted); line-height: 1.8; }
.faq-item.open .faq-a { display: block; }
.faq-a a { color: var(--neon-cyan); }
.faq-a strong { color: var(--white); }

@media (max-width: 900px) { .pricing-grid { grid-template-columns: 1fr; } }