:root {
  --bg-color: #0f172a;
  --card-bg: rgba(30, 41, 59, 0.7);
  --card-border: rgba(255, 255, 255, 0.1);
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --primary: #8b5cf6;
  --primary-hover: #7c3aed;
  --accent: #38bdf8;
  --error: #ef4444;
  --success: #10b981;
}

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

body {
  font-family: 'Outfit', sans-serif;
  background-color: var(--bg-color);
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow: hidden;
  position: relative;
}

/* Background animated blobs */
.background-elements {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  overflow: hidden;
}

.blob {
  position: absolute;
  filter: blur(80px);
  border-radius: 50%;
  opacity: 0.5;
  animation: float 10s infinite alternate ease-in-out;
}

.blob-1 {
  background: var(--primary);
  width: 400px;
  height: 400px;
  top: -100px;
  left: -100px;
}

.blob-2 {
  background: var(--accent);
  width: 300px;
  height: 300px;
  bottom: -50px;
  right: -50px;
  animation-delay: -5s;
}

@keyframes float {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(30px, 50px) scale(1.1); }
}

.container {
  width: 100%;
  max-width: 500px;
  padding: 2rem;
  z-index: 1;
}

.header {
  text-align: center;
  margin-bottom: 2rem;
  animation: slideDown 0.8s ease-out forwards;
}

.header h1 {
  font-weight: 800;
  font-size: 2.5rem;
  background: linear-gradient(135deg, var(--text-main), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 0.5rem;
}

.subtitle {
  color: var(--text-muted);
  font-size: 1.1rem;
}

.card {
  background: var(--card-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--card-border);
  border-radius: 24px;
  padding: 2.5rem;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  animation: slideUp 0.8s ease-out forwards;
  opacity: 0;
  transform: translateY(20px);
}

.card-content h2 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
  font-weight: 600;
}

.card-content p {
  color: var(--text-muted);
  margin-bottom: 2rem;
  line-height: 1.5;
  font-size: 0.95rem;
}

.beta-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.honeypot {
  display: none;
}

.input-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  text-align: left;
}

label {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-main);
}

.optional {
  color: var(--text-muted);
  font-size: 0.8rem;
  font-weight: 400;
}

.required {
  color: var(--primary);
}

input {
  width: 100%;
  padding: 0.875rem 1rem;
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  color: var(--text-main);
  font-family: inherit;
  font-size: 1rem;
  transition: all 0.3s ease;
  outline: none;
}

input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.2);
}

input::placeholder {
  color: #475569;
}

.math-group input {
  max-width: 150px;
}

.btn {
  margin-top: 1rem;
  padding: 1rem;
  border: none;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), var(--primary-hover));
  color: white;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 14px rgba(139, 92, 246, 0.4);
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(139, 92, 246, 0.6);
}

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

.btn:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none;
}

.success-message {
  text-align: center;
  padding: 2rem 0;
  animation: fadeIn 0.5s ease-out;
}

.success-icon {
  width: 64px;
  height: 64px;
  background: rgba(16, 185, 129, 0.1);
  color: var(--success);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
  font-size: 2rem;
}

.success-message h3 {
  color: var(--success);
  margin-bottom: 0.5rem;
  font-size: 1.5rem;
}

/* Animations */
@keyframes slideDown {
  from { opacity: 0; transform: translateY(-20px); }
  to { opacity: 1; transform: translateY(0); }
}

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

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

@media (max-width: 600px) {
  .container {
    padding: 1rem;
  }
  
  .card {
    padding: 1.5rem;
  }
  
  .header h1 {
    font-size: 2rem;
  }
}