:root {
  --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --success-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  --card-gradient: linear-gradient(145deg, rgba(255,255,255,0.05) 0%, rgba(255,255,255,0.02) 100%);
  --glow-color: #667eea;
  --text-primary: #ffffff;
  --text-secondary: rgba(255, 255, 255, 0.7);
  --border-color: rgba(255, 255, 255, 0.1);
  --card-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background: #0a0a0f;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

/* Premium animated background */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background:
    radial-gradient(ellipse at top left, rgba(88, 28, 135, 0.15) 0%, transparent 40%),
    radial-gradient(ellipse at bottom right, rgba(15, 23, 42, 0.3) 0%, transparent 40%),
    radial-gradient(ellipse at center, rgba(99, 102, 241, 0.08) 0%, transparent 60%);
  z-index: -3;
}

body::after {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0.4;
  z-index: -2;
  background-image:
    radial-gradient(circle at 20% 80%, rgba(120, 119, 198, 0.2) 0%, transparent 30%),
    radial-gradient(circle at 80% 20%, rgba(255, 119, 198, 0.2) 0%, transparent 30%),
    radial-gradient(circle at 40% 40%, rgba(120, 219, 255, 0.1) 0%, transparent 30%);
  animation: floatOrbs 25s ease-in-out infinite;
}

@keyframes floatOrbs {
  0%, 100% { transform: translate(0, 0) scale(1); }
  25% { transform: translate(-30px, -30px) scale(1.1); }
  50% { transform: translate(30px, -20px) scale(0.95); }
  75% { transform: translate(-20px, 20px) scale(1.05); }
}

/* Floating particles */
.particles {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  z-index: -1;
  pointer-events: none;
}

.particle {
  position: absolute;
  width: 2px;
  height: 2px;
  background: rgba(139, 92, 246, 0.5);
  border-radius: 50%;
  animation: float-up 20s infinite linear;
}

.particle:nth-child(2n) {
  background: rgba(236, 72, 153, 0.5);
  animation-duration: 25s;
}

.particle:nth-child(3n) {
  background: rgba(59, 130, 246, 0.5);
  animation-duration: 30s;
}

@keyframes float-up {
  0% {
    transform: translateY(100vh) translateX(0);
    opacity: 0;
  }
  10% {
    opacity: 1;
  }
  90% {
    opacity: 1;
  }
  100% {
    transform: translateY(-100vh) translateX(100px);
    opacity: 0;
  }
}

/* Premium Header */
header {
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  padding: 12px 16px;
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

header .brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

header .ava, header .ava-fallback {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  overflow: hidden;
  position: relative;
  flex-shrink: 0;
}

header .ava img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

header .ava-fallback {
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #667eea, #764ba2);
  font-weight: 600;
  font-size: 14px;
  color: white;
  text-transform: uppercase;
}

header .brand-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
}

header .nav {
  display: flex;
  gap: 8px;
  align-items: center;
}

header .nav .btn {
  padding: 8px 12px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.02);
  color: var(--text-secondary);
  cursor: pointer;
  text-decoration: none;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: auto;
  font-weight: 500;
  font-size: 13px;
  transition: all 0.2s ease;
}

header .nav .btn:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
  border-color: rgba(255, 255, 255, 0.15);
}

header .nav .btn.active {
  background: linear-gradient(135deg, #667eea, #764ba2);
  color: white;
  border-color: transparent;
  font-weight: 600;
}

header .nav .btn svg {
  flex-shrink: 0;
  width: 16px;
  height: 16px;
}

.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 40px 20px;
  animation: fadeInUp 0.6s ease-out;
}

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

.faq-header {
  text-align: center;
  margin-bottom: 48px;
}

.faq-title {
  font-size: 36px;
  font-weight: 700;
  background: linear-gradient(135deg, #a78bfa, #ec4899);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -1px;
  margin-bottom: 12px;
}

.faq-container {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.02));
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 24px;
  overflow: hidden;
  transition: all 0.3s ease;
  position: relative;
}

.faq-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at center, rgba(139, 92, 246, 0.03), transparent 70%);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.faq-item.open::before {
  opacity: 1;
}

.faq-item:hover {
  border-color: rgba(255, 255, 255, 0.12);
}

.faq-item.open {
  border-color: rgba(139, 92, 246, 0.3);
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.08), rgba(236, 72, 153, 0.05));
}

.faq-question {
  width: 100%;
  padding: 24px;
  background: transparent;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 16px;
  color: var(--text-primary);
  font-size: 17px;
  font-weight: 600;
  text-align: left;
  transition: all 0.2s ease;
}

.faq-question:hover {
  background: rgba(255, 255, 255, 0.02);
}

.faq-icon {
  flex-shrink: 0;
  min-width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(139, 92, 246, 0.1);
  border-radius: 16px;
  transition: all 0.3s ease;
  color: rgba(139, 92, 246, 0.8);
}

.faq-icon svg {
  width: 20px;
  height: 20px;
}

.faq-item.open .faq-icon {
  background: linear-gradient(135deg, #8b5cf6, #ec4899);
  transform: scale(1.05);
  color: white;
}

.faq-text {
  flex: 1;
}

.faq-arrow {
  flex-shrink: 0;
  transition: transform 0.3s ease;
  color: var(--text-secondary);
}

.faq-item.open .faq-arrow {
  transform: rotate(180deg);
  color: #a78bfa;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
  padding: 0 24px;
}

.faq-item.open .faq-answer {
  max-height: 3000px;
  padding: 0 24px 24px;
}

.faq-answer p {
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 16px;
  font-size: 15px;
}

.faq-answer p:last-child {
  margin-bottom: 0;
}

.faq-answer ul,
.faq-answer ol {
  color: var(--text-secondary);
  line-height: 1.8;
  padding-left: 24px;
  margin-bottom: 16px;
  font-size: 15px;
}

.faq-answer li {
  margin-bottom: 8px;
  position: relative;
}

.faq-answer li::marker {
  color: #8b5cf6;
}

.faq-answer strong {
  color: var(--text-primary);
  font-weight: 600;
}

.faq-steps {
  counter-reset: step-counter;
  list-style: none;
  padding-left: 0;
  margin: 16px 0;
}

.faq-steps li {
  counter-increment: step-counter;
  position: relative;
  padding-left: 48px;
  margin-bottom: 16px;
  color: var(--text-secondary);
  line-height: 1.8;
  font-size: 15px;
}

.faq-steps li::before {
  content: counter(step-counter);
  position: absolute;
  left: 0;
  top: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #8b5cf6, #ec4899);
  border-radius: 10px;
  font-weight: 700;
  font-size: 14px;
  color: white;
}

.faq-note {
  margin-top: 16px;
  padding: 16px;
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.3);
  border-radius: 16px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  color: #fbbf24;
  font-size: 14px;
  line-height: 1.6;
}

.faq-note svg {
  flex-shrink: 0;
  margin-top: 2px;
}

.account-type {
  padding: 20px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  margin-bottom: 16px;
}

.account-type:last-child {
  margin-bottom: 0;
}

.account-type-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
  background: linear-gradient(135deg, #8b5cf6, #ec4899);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.account-type ul {
  margin: 0;
  padding-left: 24px;
}

.support-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
  background: rgba(102, 126, 234, 0.1);
  border: 1px solid rgba(102, 126, 234, 0.3);
  border-radius: 16px;
  margin: 16px 0;
}

.support-link svg {
  flex-shrink: 0;
  color: #667eea;
}

.support-link a {
  color: rgba(102, 126, 234, 0.8);
  text-decoration: none;
  font-weight: 600;
  font-size: 15px;
  transition: color 0.2s ease;
}

.support-link a:hover {
  color: #667eea;
}

.platforms {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.platform-badge {
  display: inline-flex;
  align-items: center;
  padding: 10px 16px;
  background: rgba(139, 92, 246, 0.1);
  border: 1px solid rgba(139, 92, 246, 0.3);
  border-radius: 12px;
  color: var(--text-primary);
  font-size: 14px;
  font-weight: 600;
  transition: all 0.2s ease;
}

.platform-badge:hover {
  background: rgba(139, 92, 246, 0.2);
  border-color: rgba(139, 92, 246, 0.5);
  transform: translateY(-2px);
}

/* Responsive */
@media (max-width: 768px) {
  .container {
    padding: 32px 16px;
  }

  .faq-title {
    font-size: 28px;
  }

  .faq-question {
    padding: 20px;
    font-size: 16px;
    gap: 14px;
  }

  .faq-icon {
    min-width: 44px;
    height: 44px;
    font-size: 22px;
  }

  .faq-answer {
    padding: 0 20px;
  }

  .faq-item.open .faq-answer {
    padding: 0 20px 20px;
  }

  .faq-answer p,
  .faq-answer ul,
  .faq-answer li {
    font-size: 14px;
  }

  .faq-steps li {
    padding-left: 44px;
  }

  .faq-steps li::before {
    width: 30px;
    height: 30px;
    font-size: 13px;
  }

  .account-type {
    padding: 18px;
  }

  .account-type-title {
    font-size: 17px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 24px 12px;
  }

  .faq-title {
    font-size: 24px;
  }

  .faq-question {
    padding: 18px;
    font-size: 15px;
  }

  .faq-icon {
    min-width: 40px;
    height: 40px;
    font-size: 20px;
  }

  .faq-answer p,
  .faq-answer ul,
  .faq-answer li {
    font-size: 14px;
  }

  header .nav .btn {
    padding: 8px 12px;
    font-size: 13px;
  }

  header .nav .btn svg {
    width: 16px;
    height: 16px;
  }
}

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

::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.05);
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(135deg, #667eea, #f093fb);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(135deg, #764ba2, #f5576c);
}