/* ========================================
   Reusable Components
   ======================================== */

/* ========== Buttons ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
  cursor: pointer;
  border: none;
  text-align: center;
  white-space: nowrap;
  user-select: none;
}

.btn-primary {
  background: var(--gradient-primary);
  color: var(--color-bg-primary);
  box-shadow: var(--shadow-md), var(--shadow-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl), var(--shadow-glow-lg);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-secondary {
  background: var(--color-bg-card);
  color: var(--color-text-primary);
  border: var(--border-width) solid var(--color-primary);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: var(--color-primary-subtle);
  border-color: var(--color-primary-light);
}

.btn-download {
  background: linear-gradient(135deg, var(--color-accent-dark) 0%, var(--color-accent) 100%);
  color: white;
  font-size: var(--text-lg);
  padding: var(--space-5) var(--space-10);
  box-shadow: var(--shadow-lg);
}

.btn-download:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: var(--shadow-2xl), 0 0 30px rgba(37, 211, 102, 0.4);
}

.btn-lg {
  font-size: var(--text-lg);
  padding: var(--space-5) var(--space-10);
}

.btn-sm {
  font-size: var(--text-sm);
  padding: var(--space-2) var(--space-4);
}

/* ========== Cards ========== */
.card {
  background: var(--color-bg-card);
  backdrop-filter: blur(20px);
  border: var(--border-width) solid rgba(212, 175, 55, 0.1);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-primary);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.card:hover {
  transform: translateY(-5px);
  border-color: rgba(212, 175, 55, 0.3);
  box-shadow: var(--shadow-xl), var(--shadow-glow);
}

.card:hover::before {
  opacity: 1;
}

.card-feature {
  text-align: center;
}

.card-version {
  background: var(--gradient-card);
  border: var(--border-width-2) solid var(--color-primary-dark);
}

.card-version:hover {
  border-color: var(--color-primary);
}

/* ========== Badges ========== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  border-radius: var(--radius-full);
  background: var(--color-bg-tertiary);
  color: var(--color-text-secondary);
  border: var(--border-width) solid transparent;
}

.badge-primary {
  background: var(--color-primary-subtle);
  border-color: var(--color-primary-dark);
  color: var(--color-primary-light);
}

.badge-success {
  background: rgba(16, 185, 129, 0.1);
  border-color: var(--color-success);
  color: var(--color-success);
}

.badge-new {
  background: linear-gradient(135deg, #F59E0B 0%, #EF4444 100%);
  color: white;
  animation: pulse 2s infinite;
}

/* ========== Icons ========== */
.icon {
  width: 24px;
  height: 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.icon-lg {
  width: 48px;
  height: 48px;
}

.icon-xl {
  width: 64px;
  height: 64px;
}

.icon-gold {
  color: var(--color-primary);
  filter: drop-shadow(0 0 10px rgba(212, 175, 55, 0.5));
}

/* ========== FAQ Accordion ========== */
.faq-item {
  background: var(--color-bg-card);
  backdrop-filter: blur(10px);
  border: var(--border-width) solid rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-4);
  overflow: hidden;
  transition: all var(--transition-base);
}

.faq-item:hover {
  border-color: rgba(212, 175, 55, 0.2);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-6);
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  cursor: pointer;
  user-select: none;
  transition: all var(--transition-fast);
}

.faq-question:hover {
  color: var(--color-primary);
}

.faq-icon {
  transition: transform var(--transition-base);
  color: var(--color-primary);
  font-size: var(--text-xl);
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow);
}

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

.faq-answer-content {
  padding: 0 var(--space-6) var(--space-6) var(--space-6);
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
}

/* ========== Section Header ========== */
.section-header {
  text-align: center;
  margin-bottom: var(--space-16);
}

.section-title {
  font-size: var(--text-4xl);
  font-weight: var(--font-extrabold);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-4);
}

.section-subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* ========== Divider ========== */
.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
  margin: var(--space-12) 0;
}

/* ========== Animations ========== */
@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.7;
  }
}

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

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

@keyframes glow {
  0%, 100% {
    box-shadow: 0 0 20px rgba(212, 175, 55, 0.3);
  }
  50% {
    box-shadow: 0 0 40px rgba(212, 175, 55, 0.6);
  }
}

.animate-fade-in {
  animation: fadeIn var(--transition-slow) ease-out;
}

.animate-fade-in-up {
  animation: fadeInUp var(--transition-slow) ease-out;
}

.animate-slide-in-right {
  animation: slideInRight var(--transition-slow) ease-out;
}

.animate-float {
  animation: float 3s ease-in-out infinite;
}

/* Delay classes for staggered animations */
.delay-100 { animation-delay: 100ms; }
.delay-200 { animation-delay: 200ms; }
.delay-300 { animation-delay: 300ms; }
.delay-400 { animation-delay: 400ms; }
.delay-500 { animation-delay: 500ms; }