:root {
  --bg: #0f172a;
  --card-bg: #111827;
  --accent: #3b82f6;
  --accent-soft: rgba(59,130,246,0.15);
  --text: #e5e7eb;
  --muted: #9ca3af;
  --danger: #ef4444;
  --success: #22c55e;
  --radius: 18px;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: radial-gradient(circle at top, #1e293b, #020617);
  color: var(--text);
}

body {
  min-height: 100vh;
  display: flex;
  align-items: stretch;
  justify-content: center;
}

.page {
  width: 100%;
  max-width: 480px;
  margin: 0 auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
}

.card {
  background: linear-gradient(145deg, rgba(15,23,42,0.96), rgba(15,23,42,0.9));
  border-radius: var(--radius);
  padding: 20px 18px 18px;
  box-shadow:
    0 18px 45px rgba(15,23,42,0.9),
    0 0 0 1px rgba(148,163,184,0.1);
  backdrop-filter: blur(18px);
}

h1 {
  font-size: 1.6rem;
  margin: 0 0 12px;
}

h2 {
  font-size: 1.25rem;
  margin: 0 0 10px;
}

p {
  margin: 0 0 10px;
  font-size: 0.95rem;
}

label {
  display: block;
  font-size: 0.9rem;
  margin-bottom: 4px;
  color: var(--muted);
}

input[type="text"],
input[type="password"] {
  width: 100%;
  padding: 12px 11px;
  border-radius: 12px;
  border: 1px solid rgba(148,163,184,0.4);
  background: rgba(15,23,42,0.85);
  color: var(--text);
  font-size: 1rem;
  outline: none;
}

input[readonly] {
  background: rgba(15,23,42,0.6);
}

input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px rgba(59,130,246,0.4);
}

button {
  width: 100%;
  border: none;
  border-radius: 999px;
  padding: 13px 14px;
  font-size: 1rem;
  font-weight: 600;
  margin-top: 8px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: transform 0.08s ease, box-shadow 0.08s ease, background 0.15s ease;
}

.btn-primary {
  background: linear-gradient(135deg, #3b82f6, #2563eb);
  color: white;
  box-shadow:
    0 10px 25px rgba(37,99,235,0.6),
    0 0 0 1px rgba(191,219,254,0.3);
}

.btn-secondary {
  background: rgba(15,23,42,0.9);
  color: var(--muted);
  border: 1px solid rgba(148,163,184,0.4);
  box-shadow: 0 6px 18px rgba(15,23,42,0.85);
}

button:active {
  transform: translateY(1px) scale(0.99);
  box-shadow: none;
}

a {
  color: var(--accent);
  text-decoration: none;
  font-size: 0.9rem;
}

a:hover {
  text-decoration: underline;
}

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

.status-error {
  color: var(--danger);
}

.status-success {
  color: var(--success);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 9px;
  border-radius: 999px;
  background: rgba(148,163,184,0.1);
  font-size: 0.8rem;
  color: var(--muted);
}

.badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 999px;
}

.badge-dot.green {
  background: #22c55e;
}

.badge-dot.red {
  background: #ef4444;
}

.header-spacer {
  height: 18px;
}

.footer-links {
  margin-top: 14px;
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--muted);
}

.footer-links a {
  font-size: 0.85rem;
}

.code-input {
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 0.8rem;
  letter-spacing: 0.05em;
}

@media (max-width: 480px) {
  h1 {
    font-size: 1.4rem;
  }

  .card {
    padding: 18px 14px 16px;
  }

  button {
    font-size: 0.95rem;
    padding: 11px 12px;
  }
}