/* ライバーお礼ギフト発送代行バレナイ Custom Styles */

/* Smooth Scroll */
html {
  scroll-behavior: smooth;
}

/* Body */
body {
  font-family: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
}

/* Custom Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.8;
  }
}

/* Fade in animation for sections */
.fade-in-up {
  animation: fadeInUp 0.6s ease-out;
}

/* Button Hover Effects */
button, a {
  transition: all 0.3s ease;
}

button:hover, a:hover {
  transform: translateY(-2px);
}

/* Card Hover Effects */
.hover-lift {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hover-lift:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

/* Gradient Text */
.gradient-text {
  background: linear-gradient(135deg, #3B82F6 0%, #A855F7 50%, #F97316 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* FAQ Accordion Animations */
.faq-item {
  transition: all 0.3s ease;
}

.faq-item:hover {
  transform: translateX(4px);
}

.faq-question {
  cursor: pointer;
  user-select: none;
}

.faq-question i {
  transition: transform 0.3s ease;
}

.faq-item.active .faq-question i {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-item.active .faq-answer {
  max-height: 500px;
}

/* Scroll to Top Button */
#scrollToTop {
  transition: opacity 0.3s ease, transform 0.3s ease;
}

#scrollToTop.visible {
  opacity: 1;
  pointer-events: auto;
}

#scrollToTop:hover {
  transform: translateY(-4px);
}

/* Hero Section Background */
.hero-bg {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.1) 0%, rgba(168, 85, 247, 0.1) 50%, rgba(249, 115, 22, 0.1) 100%);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
  background: #3B82F6;
  border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
  background: #2563EB;
}

/* Loading Animation */
.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: #fff;
  animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Form Focus States */
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: #3B82F6;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

/* Success/Error Message Animations */
#successMessage, #errorMessage {
  animation: slideInDown 0.5s ease-out;
}

@keyframes slideInDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Pricing Card Highlight */
.pricing-card {
  position: relative;
  overflow: hidden;
}

.pricing-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s ease;
}

.pricing-card:hover::before {
  left: 100%;
}

/* Mobile Navigation */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 2.5rem;
  }
  
  .section-title {
    font-size: 2rem;
  }
}

/* Trust Badge Animation */
.trust-badge {
  animation: pulse 2s infinite;
}

/* Section Spacing */
section {
  scroll-margin-top: 80px;
}

/* Grid Hover Effect */
.grid-item {
  transition: all 0.3s ease;
}

.grid-item:hover {
  z-index: 10;
}

/* Typography Enhancements */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
}

p {
  line-height: 1.7;
}

/* Link Hover Effects */
a {
  transition: color 0.2s ease;
}

/* Button Active States */
button:active {
  transform: scale(0.98);
}

/* Card Shadow Layers */
.shadow-layered {
  box-shadow: 
    0 1px 3px rgba(0, 0, 0, 0.12),
    0 1px 2px rgba(0, 0, 0, 0.24);
}

.shadow-layered:hover {
  box-shadow: 
    0 14px 28px rgba(0, 0, 0, 0.15),
    0 10px 10px rgba(0, 0, 0, 0.12);
}

/* Responsive Images */
img {
  max-width: 100%;
  height: auto;
}

/* Utility Classes */
.text-balance {
  text-wrap: balance;
}

.transition-all {
  transition: all 0.3s ease;
}

/* Nav Fixed Styles */
nav {
  backdrop-filter: blur(10px);
  background-color: rgba(255, 255, 255, 0.95);
}

/* Hero Image Placeholder */
.hero-placeholder {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  min-height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.5rem;
  font-weight: bold;
}

/* Feature Icon Animation */
.feature-icon {
  transition: transform 0.3s ease;
}

.feature-icon:hover {
  transform: scale(1.1) rotate(5deg);
}

/* Glassmorphism Effect */
.glass {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

/* Badge Styles */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.5rem 1rem;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 600;
}

/* Timeline Connector (for How It Works) */
.timeline-line {
  position: relative;
}

.timeline-line::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 100%;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, #3B82F6, transparent);
}

/* Print Styles */
@media print {
  nav, footer, #scrollToTop {
    display: none;
  }
  
  section {
    page-break-inside: avoid;
  }
}

/* Accessibility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Focus Visible for Keyboard Navigation */
*:focus-visible {
  outline: 2px solid #3B82F6;
  outline-offset: 2px;
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}