/* =============================================
   business bitcoin — Design System
   ============================================= */

/* ---------- Fade-in-up entrance animation ---------- */
.fade-in-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger delays for children */
.fade-in-up[data-delay="1"] { transition-delay: 0.1s; }
.fade-in-up[data-delay="2"] { transition-delay: 0.2s; }
.fade-in-up[data-delay="3"] { transition-delay: 0.3s; }
.fade-in-up[data-delay="4"] { transition-delay: 0.4s; }

/* ---------- Split-panel (Two-Door Gateway) ---------- */
.gateway-panel {
  transition: transform 0.3s ease, border-color 0.3s ease;
  border: 2px solid transparent;
}

.gateway-panel:hover {
  transform: scale(1.02);
  border-color: #F7931A;
}

/* ---------- Stats strip — monospace numbers ---------- */
.stat-number {
  font-family: 'Space Grotesk', 'SF Mono', 'Fira Code', monospace;
  font-weight: 700;
  letter-spacing: -0.02em;
}

/* ---------- Partner logos — grayscale to color ---------- */
.partner-logo {
  filter: grayscale(100%);
  opacity: 0.6;
  transition: filter 0.3s ease, opacity 0.3s ease;
}

.partner-logo:hover {
  filter: grayscale(0%);
  opacity: 1;
}

/* ---------- Accordion (kept from original) ---------- */
[data-accordion-icon] {
  transition: transform 0.2s ease;
}

/* ---------- Line clamp utilities ---------- */
.line-clamp-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.line-clamp-3 {
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ---------- Prose styles (legal pages, blog) ---------- */
.prose h2 {
  margin-top: 2rem;
  margin-bottom: 1rem;
}

.prose p {
  margin-bottom: 1rem;
  line-height: 1.75;
}

.prose ul {
  margin-bottom: 1rem;
}

.prose li {
  margin-bottom: 0.5rem;
  line-height: 1.75;
}

.prose blockquote {
  border-left: 3px solid #F7931A;
  padding-left: 1rem;
  margin: 1.5rem 0;
  color: #555;
}

/* ---------- Lightning bolt hero decoration ---------- */
.lightning-bolt {
  position: absolute;
  right: -5%;
  top: 50%;
  transform: translateY(-50%);
  width: 40%;
  max-width: 400px;
  opacity: 0.04;
  pointer-events: none;
}

@media (max-width: 768px) {
  .lightning-bolt {
    width: 60%;
    right: -10%;
    opacity: 0.03;
  }
}

/* ---------- Scroll indicator ---------- */
.scroll-indicator {
  animation: scrollBounce 2s ease infinite;
}

@keyframes scrollBounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(8px); }
}

/* ---------- Orange accent border (stats strip) ---------- */
.border-accent-top {
  border-top: 2px solid #F7931A;
}

/* ---------- Tag pills (payments page) ---------- */
.tag-pill {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 500;
  border-radius: 9999px;
  background-color: rgba(247, 147, 26, 0.08);
  color: #F7931A;
}

/* ---------- Reason number (Why Bitcoin grid) ---------- */
.reason-number {
  font-family: 'Space Grotesk', monospace;
  font-weight: 700;
  font-size: 2.5rem;
  line-height: 1;
  color: #F7931A;
}

/* ---------- Process timeline (beratung page) ---------- */
.process-step {
  position: relative;
  padding-left: 2rem;
}

.process-step::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background-color: #E5E5E5;
}

.process-step::after {
  content: '';
  position: absolute;
  left: -5px;
  top: 4px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background-color: #F7931A;
}

.process-step:last-child::before {
  display: none;
}

/* ---------- Social icons (footer) ---------- */
.social-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background-color: rgba(255, 255, 255, 0.05);
  color: #999;
  transition: color 0.2s ease, background-color 0.2s ease;
}

.social-icon:hover {
  color: #F7931A;
  background-color: rgba(247, 147, 26, 0.1);
}

.social-icon img {
  width: 18px;
  height: 18px;
  filter: brightness(0) invert(0.6);
  transition: filter 0.2s ease;
}

.social-icon:hover img {
  filter: brightness(0) invert(0.75) sepia(1) saturate(5) hue-rotate(350deg);
}

/* ---------- Contact icons (footer) ---------- */
.contact-icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  filter: brightness(0) invert(0.45);
  transition: filter 0.2s ease;
}

a:hover .contact-icon {
  filter: brightness(0) invert(0.75) sepia(1) saturate(5) hue-rotate(350deg);
}

/* ---------- Scrollbar ---------- */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: #0A0A0A;
}

::-webkit-scrollbar-thumb {
  background: #333;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #555;
}

/* ---------- Selection ---------- */
::selection {
  background-color: rgba(247, 147, 26, 0.2);
  color: inherit;
}

/* ---------- Focus ---------- */
a:focus-visible,
button:focus-visible {
  outline: 2px solid #F7931A;
  outline-offset: 2px;
  border-radius: 4px;
}

/* ---------- Print ---------- */
@media print {
  header, footer, #mobile-menu-btn {
    display: none !important;
  }
  main {
    padding-top: 0 !important;
  }
}