:root {
  --bg: #ffffff;
  --text: #333333;
  --accent: #6c63ff;
  --gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --shadow: 0 20px 40px rgba(0,0,0,0.1);
  --card-bg: #ffffff;
  --border-radius: 16px;
  --success: #4CAF50;
  --warning: #FF9800;
}

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

body {
  background: var(--gradient);
  color: var(--text);
  font-family: 'Poppins', sans-serif;
  min-height: 100vh;
  padding: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow-x: hidden;
}

body::before {
  content: '';
  position: fixed;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(108,99,255,0.1) 0%, transparent 70%);
  animation: rotate 20s linear infinite;
  z-index: -1;
}

@keyframes rotate {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.container {
  max-width: 420px;
  width: 100%;
  background: var(--card-bg);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
  padding: 2.5rem;
  text-align: center;
  position: relative;
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.2);
  animation: slideUp 0.6s ease-out;
}

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

.header-icon {
  width: 80px;
  height: 80px;
  background: var(--gradient);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
  font-size: 2rem;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

h1 {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.description {
  font-size: 0.95rem;
  color: #666;
  margin-bottom: 2rem;
  line-height: 1.6;
}

.button-container {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 2rem;
}

button {
  padding: 1rem 1.5rem;
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: 12px;
  cursor: pointer;
  background: var(--gradient);
  color: white;
  width: 100%;
  position: relative;
  overflow: hidden;
  transition: all 0.3s ease;
}

button::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 0.6s ease;
}

button:hover::before {
  left: 100%;
}

button:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(108,99,255,0.3);
}

button:active {
  transform: translateY(0);
}

button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

#claimBtn {
  display: none;
  background: var(--success);
  animation: bounceIn 0.5s ease-out;
}

@keyframes bounceIn {
  0% {
    opacity: 0;
    transform: scale(0.3);
  }
  50% {
    transform: scale(1.05);
  }
  100% {
    opacity: 1;
    transform: scale(1);
  }
}

.progress-indicator {
  display: none;
  margin: 1rem 0;
  padding: 1rem;
  background: #f8f9fa;
  border-radius: 8px;
  border-left: 4px solid var(--success);
}

.progress-indicator.show {
  display: block;
  animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.status-icon {
  display: inline-block;
  margin-right: 0.5rem;
  font-size: 1.2rem;
}

footer {
  position: absolute;
  bottom: 1rem;
  right: 1rem;
  font-size: 0.8rem;
}

footer a {
  color: rgba(255,255,255,0.7);
  cursor: pointer;
  text-decoration: none;
  padding: 0.5rem;
  border-radius: 6px;
  transition: all 0.3s ease;
}

footer a:hover {
  background: rgba(255,255,255,0.1);
  color: white;
}

@media (max-width: 480px) {
  .container {
    margin: 1rem;
    padding: 2rem;
  }
  h1 {
    font-size: 1.5rem;
  }
}