*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: #0a0a0a;
  color: #f0f0f0;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}
.card {
  background: #141414;
  border: 1px solid #222;
  border-radius: 12px;
  padding: 2.5rem;
  width: 100%;
  max-width: 400px;
  margin: 1rem;
}
.logo { text-align: center; margin-bottom: 2rem; }
.logo h1 { font-size: 1.75rem; font-weight: 700; letter-spacing: -0.5px; }
.logo h1 span { color: #6ee7b7; }
.logo p { color: #666; font-size: 0.9rem; margin-top: 0.4rem; }
label { display: block; font-size: 0.85rem; color: #888; margin-bottom: 0.4rem; }
input {
  width: 100%;
  padding: 0.75rem 1rem;
  background: #1e1e1e;
  border: 1px solid #2e2e2e;
  border-radius: 8px;
  color: #f0f0f0;
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.15s;
  margin-bottom: 1.25rem;
}
input:focus { border-color: #6ee7b7; }
button {
  width: 100%;
  padding: 0.8rem;
  background: #6ee7b7;
  color: #0a0a0a;
  border: none;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.15s;
  margin-top: 0.5rem;
}
button:hover { opacity: 0.85; }
button:disabled { opacity: 0.5; cursor: not-allowed; }
.error {
  background: #2a1010;
  border: 1px solid #5a1a1a;
  color: #f87171;
  padding: 0.75rem 1rem;
  border-radius: 8px;
  font-size: 0.875rem;
  margin-bottom: 1rem;
  display: none;
}
.divider { text-align: center; color: #444; font-size: 0.85rem; margin: 1.25rem 0; }
.link { text-align: center; margin-top: 1.25rem; font-size: 0.875rem; color: #666; }
.link a { color: #6ee7b7; text-decoration: none; }
.link a:hover { text-decoration: underline; }