:root {
  color-scheme: light dark;
  --bg: #0b0c10;
  --card: #14161c;
  --text: #f2f2f5;
  --muted: #9a9ca6;
  --accent: #6d8cff;
  --accent-text: #0b0c10;
  --border: #2a2d38;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f5f6fa;
    --card: #ffffff;
    --text: #16171d;
    --muted: #5b5e6b;
    --accent: #3355dd;
    --accent-text: #ffffff;
    --border: #e2e4ec;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  padding: 24px;
}

.card {
  width: 100%;
  max-width: 420px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
}

h1 {
  margin: 0 0 8px;
  font-size: 1.75rem;
  letter-spacing: -0.02em;
}

.tagline {
  margin: 0 0 24px;
  color: var(--muted);
  font-size: 0.95rem;
}

form {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

label {
  font-size: 0.85rem;
  color: var(--muted);
  margin-top: 12px;
}

label:first-of-type {
  margin-top: 0;
}

input[type="text"] {
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  font-size: 1rem;
}

input[type="text"]:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

button {
  margin-top: 20px;
  padding: 12px;
  border: none;
  border-radius: 8px;
  background: var(--accent);
  color: var(--accent-text);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
}

button:hover {
  filter: brightness(1.08);
}

button:disabled {
  opacity: 0.6;
  cursor: default;
}

.status {
  min-height: 1.2em;
  font-size: 0.9rem;
  margin: 10px 0 0;
}

.status[data-state="success"] { color: #3ac776; }
.status[data-state="error"] { color: #ff6b6b; }

.hp {
  position: absolute;
  left: -9999px;
}