* { box-sizing: border-box; }

:root {
  --navy: #3745b0;
  --navy-light: #7e82ad;
  --muted: #9599b8;
  --border: #2c2f4a;
  --bg: #0b0c14;
  --card: #14162280;
  --card-solid: #14162e;
}

body {
  font-family: system-ui, sans-serif;
  background: var(--bg);
  color: #f2f2f5;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  margin: 0;
}

.card {
  background: var(--card-solid);
  padding: 2.5rem;
  border-radius: 16px;
  max-width: 400px;
  width: 90%;
  text-align: center;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.4);
  border: 1px solid var(--border);
}

.logo { width: 200px; max-width: 70%; height: auto; margin: 0 auto 1.5rem; display: block; }

.subtitle { color: var(--muted); margin-top: 0; margin-bottom: 1.5rem; }

form { display: flex; flex-direction: column; gap: 0.75rem; text-align: left; }

label { font-size: 0.9rem; color: var(--muted); font-weight: 600; }

input[type="email"] {
  padding: 0.65rem 0.75rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #0b0c14;
  color: #f2f2f5;
  font-size: 1rem;
}

input[type="email"]:focus {
  outline: none;
  border-color: var(--navy-light);
  box-shadow: 0 0 0 3px rgba(126, 130, 173, 0.25);
}

button, .button {
  padding: 0.75rem;
  border-radius: 8px;
  border: none;
  background: var(--navy);
  color: white;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  transition: background 0.15s ease;
}

button:hover, .button:hover { background: #2c3690; }

#message { margin-top: 1rem; color: var(--muted); }