:root {
  --bg: #0f172a;
  --bg-accent: #1e293b;
  --card: #1e293b;
  --border: #334155;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --error: #f87171;
}

* { box-sizing: border-box; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: radial-gradient(circle at 50% 0%, var(--bg-accent), var(--bg));
  color: var(--text);
  margin: 0;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
  width: 100%;
  max-width: 380px;
  padding: 2rem;
}

h1 {
  font-size: 1.5rem;
  margin: 0 0 0.25rem;
}

.sub {
  color: var(--muted);
  margin: 0 0 1.5rem;
  font-size: 0.9rem;
}

label { display: block; font-size: 0.8rem; color: var(--muted); margin-bottom: 0.35rem; }

input {
  width: 100%;
  padding: 0.7rem 0.85rem;
  margin-bottom: 1rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 1rem;
  transition: border-color 0.15s, box-shadow 0.15s;
}
input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.25);
}

button {
  width: 100%;
  padding: 0.7rem;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s;
}
button:hover { background: var(--accent-hover); }
button:disabled { opacity: 0.6; cursor: not-allowed; }

.hint {
  color: var(--muted);
  font-size: 0.8rem;
  margin: 1rem 0 0;
  text-align: center;
}

.error {
  color: var(--error);
  font-size: 0.85rem;
  margin: 1rem 0 0;
  display: none;
}

a { color: var(--accent); }

table {
  border-collapse: collapse;
  width: 100%;
  margin-top: 0.5rem;
}
th, td {
  border: 1px solid var(--border);
  padding: 0.6rem 0.75rem;
  text-align: left;
  font-size: 0.9rem;
  word-break: break-all;
}
th { color: var(--muted); font-weight: 600; width: 30%; }

.logout {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  margin-top: 1.25rem;
}
.logout:hover { background: var(--bg); color: var(--text); }