/* PayBitT-Core / POS marketing page — visual enhancements */

/* Hero */
.pos-hero-brand {
  margin-bottom: 1.25rem;
}

.pos-hero-product-logo {
  display: block;
  max-width: min(220px, 100%);
  height: auto;
  object-fit: contain;
}

.pos-hero {
  position: relative;
  padding: 4rem 0 4.5rem;
  overflow: hidden;
}

.pos-hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 90% 60% at 50% -10%, rgba(56, 189, 248, 0.2), transparent 60%),
    radial-gradient(ellipse 70% 50% at 90% 50%, rgba(14, 165, 233, 0.12), transparent 50%),
    radial-gradient(ellipse 70% 50% at 10% 80%, rgba(52, 211, 153, 0.08), transparent 50%);
  pointer-events: none;
}

.pos-hero-content {
  position: relative;
  z-index: 1;
}

.pos-hero-badge {
  display: inline-block;
  padding: 0.4rem 1rem;
  background: rgba(56, 189, 248, 0.18);
  color: var(--color-accent);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border-radius: 100px;
  margin-bottom: 1.25rem;
}

.pos-hero-title {
  font-family: var(--font-serif);
  font-size: clamp(2.5rem, 5.5vw, 3.75rem);
  font-weight: 400;
  line-height: 1.12;
  margin-bottom: 1.25rem;
  letter-spacing: -0.02em;
}

.pos-hero-title em {
  font-style: italic;
  color: var(--color-accent);
}

.pos-hero-subtitle {
  font-size: 1.1875rem;
  color: var(--color-text-muted);
  max-width: 580px;
  margin-bottom: 2rem;
  line-height: 1.7;
}

.pos-hero-cta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn-lg {
  padding: 0.9rem 1.75rem;
  font-size: 1rem;
}

/* Download section */
.pos-download-section {
  padding: 3.5rem 0;
  background: var(--color-bg-elevated);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  scroll-margin-top: 5rem;
}

.pos-download-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
  max-width: 900px;
  margin: 0 auto;
}

.pos-download-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  padding: 1.35rem 1rem;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--color-text);
  font-weight: 600;
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
}

.pos-download-card:hover {
  border-color: rgba(56, 189, 248, 0.45);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
  transform: translateY(-2px);
  color: var(--color-accent);
}

.pos-download-platform {
  font-size: 1.0625rem;
}

.pos-download-hint {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-text-muted);
}

.pos-download-card:hover .pos-download-hint {
  color: var(--color-text-muted);
}

/* Slider section */
.pos-slider-section {
  padding: 4rem 0;
  background: var(--color-bg);
}

.pos-section-title {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 3.5vw, 2.25rem);
  font-weight: 400;
  text-align: center;
  margin-bottom: 0.5rem;
}

.pos-section-subtitle {
  text-align: center;
  color: var(--color-text-muted);
  margin-bottom: 2.5rem;
}

.pos-slider {
  position: relative;
  max-width: 960px;
  margin: 0 auto;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
  border: 1px solid var(--color-border);
}

.pos-slider-track {
  position: relative;
  aspect-ratio: 16 / 9;
}

.pos-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.5s ease, visibility 0.5s;
}

.pos-slide.active {
  opacity: 1;
  visibility: visible;
  z-index: 1;
}

.pos-slide-img {
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.pos-slide-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 1.25rem 1.5rem;
  background: linear-gradient(transparent, rgba(10, 15, 26, 0.95));
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-text);
}

.pos-slider-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 2;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(10, 15, 26, 0.8);
  border: 1px solid var(--color-border);
  border-radius: 50%;
  color: var(--color-text);
  cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}

.pos-slider-btn:hover {
  background: var(--color-accent);
  color: var(--color-bg);
  border-color: var(--color-accent);
}

.pos-slider-btn svg {
  width: 24px;
  height: 24px;
}

.pos-slider-prev { left: 1rem; }
.pos-slider-next { right: 1rem; }

.pos-slider-dots {
  position: absolute;
  bottom: 1rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  gap: 0.5rem;
}

.pos-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(148, 163, 184, 0.5);
  border: none;
  cursor: pointer;
  transition: background 0.2s, transform 0.2s;
}

.pos-dot:hover {
  background: rgba(148, 163, 184, 0.8);
}

.pos-dot.active {
  background: var(--color-accent);
  transform: scale(1.2);
}

/* Why section */
.pos-why-section {
  padding: 4rem 0;
  background: var(--color-bg-elevated);
  border-top: 1px solid var(--color-border);
}

.pos-comparison-grid {
  max-width: 720px;
  margin: 0 auto;
}

.pos-comparison-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.pos-comparison-header {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--color-border);
}

.pos-comparison-label {
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
}

.pos-comparison-card h3 {
  font-size: 0.9375rem;
  font-weight: 600;
  margin: 1rem 0 0.5rem;
  color: var(--color-text);
}

.pos-comparison-card h3:first-of-type {
  margin-top: 0;
}

.pos-comparison-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  align-items: center;
  padding: 0.6rem 0;
  font-size: 0.9375rem;
}

.pos-comparison-other {
  color: var(--color-text-muted);
  opacity: 0.9;
}

.pos-comparison-us {
  color: var(--color-success);
  font-weight: 500;
}

/* Features grid */
.pos-features-section {
  padding: 4rem 0;
  background: var(--color-bg);
}

.pos-features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}

.pos-feature-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.75rem;
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
  opacity: 0;
  transform: translateY(16px);
}

.pos-feature-card.visible {
  opacity: 1;
  transform: translateY(0);
}

.pos-feature-card:hover {
  border-color: rgba(56, 189, 248, 0.4);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.pos-feature-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(56, 189, 248, 0.12);
  color: var(--color-accent);
  border-radius: var(--radius);
  margin-bottom: 1rem;
}

.pos-feature-icon svg {
  width: 24px;
  height: 24px;
}

.pos-feature-card h3 {
  font-size: 1.0625rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--color-text);
}

.pos-feature-card p {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin: 0;
}

/* Trust section */
.pos-trust-section {
  padding: 2.5rem 0;
  background: var(--color-bg-elevated);
  border-top: 1px solid var(--color-border);
}

.pos-trust-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2rem;
}

.pos-trust-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

.pos-trust-icon {
  font-size: 1.25rem;
}

/* CTA section */
.pos-cta-section {
  padding: 4rem 0;
  background: var(--color-bg);
}

.pos-cta-card {
  max-width: 640px;
  margin: 0 auto;
  padding: 3rem;
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.12), rgba(52, 211, 153, 0.08));
  border: 1px solid rgba(56, 189, 248, 0.3);
  border-radius: var(--radius-lg);
  text-align: center;
}

.pos-cta-card h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 400;
  margin-bottom: 0.75rem;
}

.pos-cta-card p {
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
  font-size: 1rem;
}

.pos-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  align-items: center;
}

/* Responsive */
@media (max-width: 768px) {
  .pos-hero {
    padding: 3rem 0 3.5rem;
  }

  .pos-slider-btn {
    width: 40px;
    height: 40px;
  }

  .pos-slider-prev { left: 0.5rem; }
  .pos-slider-next { right: 0.5rem; }

  .pos-comparison-row,
  .pos-comparison-header {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }

  .pos-comparison-row {
    padding: 0.75rem 0;
    border-bottom: 1px solid rgba(51, 65, 85, 0.5);
  }

  .pos-comparison-row:last-of-type {
    border-bottom: none;
  }

  .pos-comparison-us {
    padding-left: 0;
  }

  .pos-trust-grid {
    flex-direction: column;
    align-items: center;
  }
}