:root {
  --brand-color: #8aa8b2;
  --brand-dark: #4a6872;
  --brand-darker: #2f454d;
  --text-color: #3a4b52;
  --bg-start: #f4f8f9;
  --bg-end: #dde6e9;
  --white: #ffffff;
  --font-family: 'Inter', sans-serif;
}

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

body {
  font-family: var(--font-family);
  background: linear-gradient(135deg, var(--bg-start) 0%, var(--bg-end) 100%);
  color: var(--text-color);
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow: hidden;
}

.container {
  width: 100%;
  max-width: 600px;
  padding: 2rem;
  text-align: center;
}

.content {
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 3rem 2rem;
  border-radius: 24px;
  box-shadow: 0 20px 40px rgba(138, 168, 178, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.5);
  animation: fadeIn 1s ease-out;
}

.logo {
  height: 60px;
  margin-bottom: 2rem;
  width: auto;
}

h1 {
  font-size: 2.75rem;
  font-weight: 700;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
  color: var(--brand-darker);
  line-height: 1.1;
}

.subtitle {
  font-size: 1.25rem;
  color: var(--brand-dark);
  margin-bottom: 2.5rem;
  font-weight: 400;
}

.signup-form {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 2rem;
  flex-wrap: wrap; /* Mobile friendly */
  justify-content: center;
}

input[type='email'] {
  padding: 0.875rem 1.25rem;
  border: 2px solid transparent;
  background-color: white;
  border-radius: 12px;
  font-size: 1rem;
  flex: 1;
  min-width: 220px;
  color: var(--text-color);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.02);
  /* Disabled state styling */
  cursor: not-allowed;
  opacity: 0.8;
}

button {
  padding: 0.875rem 2rem;
  background-color: var(--brand-dark);
  color: white;
  border: none;
  border-radius: 12px;
  font-size: 1rem;
  font-weight: 600;
  cursor: not-allowed;
  opacity: 0.9;
  transition: all 0.2s ease;
  box-shadow: 0 4px 12px rgba(74, 104, 114, 0.2);
}

.note {
  font-size: 0.95rem;
  color: var(--brand-dark);
  margin-top: 0.75rem;
  line-height: 1.5;
}

.note a {
  color: var(--brand-darker);
  text-decoration: none;
  font-weight: 600;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s;
}

.note a:hover {
  border-color: var(--brand-darker);
}

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

@media (max-width: 480px) {
  h1 {
    font-size: 2rem;
  }
  .content {
    padding: 2.5rem 1.5rem;
  }
  .logo {
    height: 48px;
  }
  button {
    width: 100%;
  }
}