/* ================================
   Home Page Styles
   Load after shared.css on index.html
================================ */

.three-grid,
.journey-grid,
.audience-section,
.split-section {
  display: grid;
  gap: 18px;
}

.three-grid {
  grid-template-columns: repeat(3, 1fr);
  margin-top: 34px;
}

.journey-grid {
  grid-template-columns: 1.25fr 1fr 1fr 1fr;
}

.split-section {
  grid-template-columns: 1fr 1fr;
}

.audience-section {
  grid-template-columns: repeat(3, 1fr);
}

.feature-card,
.split-card,
.audience-card {
  border-radius: var(--radius-lg);
  padding: 24px;
  background: linear-gradient(180deg, rgba(255,255,255,.105), rgba(255,255,255,.052));
  border: 1px solid rgba(255,255,255,.12);
  box-shadow: 0 18px 48px rgba(0,0,0,.18);
}

.feature-card,
.audience-card {
  transition: transform .2s ease, border-color .2s ease, background .2s ease;
}

.feature-card:hover,
.audience-card:hover {
  transform: translateY(-4px);
  border-color: rgba(82,255,224,.32);
}

.icon {
  width: 46px;
  height: 46px;
  border-radius: 18px;
  display: grid;
  place-items: center;
  font-size: 1.35rem;
  background: rgba(82,255,224,.13);
  border: 1px solid rgba(82,255,224,.22);
  margin-bottom: 14px;
}

.journey-card {
  min-height: 280px;
  display: flex;
  flex-direction: column;
}

.journey-card.featured {
  background:
    linear-gradient(160deg, rgba(82,255,224,0.18), rgba(185,150,255,0.15)),
    rgba(255,255,255,.07);
}

.journey-card .card-link {
  margin-top: auto;
}

.split-card {
  min-height: 360px;
  display: flex;
  flex-direction: column;
  align-items: start;
  justify-content: end;
}

.book-card {
  background:
    linear-gradient(180deg, rgba(7,16,40,.25), rgba(7,16,40,.92)),
    radial-gradient(circle at top left, rgba(185,150,255,.35), transparent 40%),
    rgba(255,255,255,.07);
}

.app-card {
  background:
    linear-gradient(180deg, rgba(7,16,40,.25), rgba(7,16,40,.92)),
    radial-gradient(circle at top right, rgba(82,255,224,.3), transparent 42%),
    rgba(255,255,255,.07);
}


/* ================================
   Choose Your Signal Hero Panel
================================ */

.choose-signal-panel {
  position: relative;
  margin: 30px 0 22px;
  padding: 22px;
  border-radius: 30px;
  background:
    radial-gradient(circle at 18% 10%, rgba(82,255,224,.20), transparent 34%),
    radial-gradient(circle at 86% 18%, rgba(185,150,255,.22), transparent 36%),
    linear-gradient(180deg, rgba(255,255,255,.105), rgba(255,255,255,.045));
  border: 1px solid rgba(255,255,255,.14);
  box-shadow: 0 24px 70px rgba(0,0,0,.24);
  overflow: hidden;
}

.choose-signal-panel::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  pointer-events: none;
  background: linear-gradient(135deg, rgba(82,255,224,.28), transparent 38%, rgba(185,150,255,.23));
  opacity: .55;
  mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  mask-composite: exclude;
  -webkit-mask-composite: xor;
  padding: 1px;
}

.choose-signal-intro {
  max-width: 720px;
  margin-bottom: 16px;
}

.choose-signal-intro h2 {
  margin: 6px 0 8px;
  font-size: clamp(1.45rem, 2.4vw, 2.2rem);
  letter-spacing: -.04em;
}

.choose-signal-intro p:last-child {
  margin: 0;
  color: var(--muted);
}

.signal-choice-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.signal-choice-card {
  min-height: 132px;
  padding: 16px;
  border-radius: 22px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  text-decoration: none;
  color: var(--text);
  background: rgba(6,14,36,.62);
  border: 1px solid rgba(255,255,255,.12);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.08);
  transition: transform .2s ease, border-color .2s ease, background .2s ease, box-shadow .2s ease;
}

.signal-choice-card:hover,
.signal-choice-card:focus-visible {
  transform: translateY(-4px);
  border-color: rgba(82,255,224,.46);
  background: rgba(13,28,68,.78);
  box-shadow: 0 18px 45px rgba(0,0,0,.28), 0 0 24px rgba(82,255,224,.10);
  outline: none;
}

.signal-choice-icon {
  width: 42px;
  height: 42px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  font-size: 1.3rem;
  background: rgba(82,255,224,.12);
  border: 1px solid rgba(82,255,224,.20);
}

.signal-choice-card strong {
  margin-top: 14px;
  font-size: 1.02rem;
  letter-spacing: -.02em;
}

.signal-choice-card small {
  margin-top: 4px;
  color: var(--muted);
  line-height: 1.35;
}

@media (max-width: 1080px) {
  .journey-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .signal-choice-grid,
  .three-grid,
  .audience-section {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 920px) {
  .split-section {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .choose-signal-panel {
    padding: 18px;
    border-radius: 24px;
  }

  .signal-choice-grid,
  .three-grid,
  .journey-grid,
  .audience-section {
    grid-template-columns: 1fr;
  }

  .signal-choice-card {
    min-height: 112px;
  }
}