* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Arial, sans-serif;
  background: linear-gradient(135deg, #1f2937, #111827);
  color: #f8fafc;
  display: flex;
  align-items: center;
  justify-content: center;
}

.container {
  width: min(1020px, calc(100% - 32px));
  padding: 24px;
}

.card {
  background: rgba(15, 23, 42, 0.96);
  border: 1px solid rgba(148, 163, 184, 0.18);
  border-radius: 18px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.25);
  padding: 32px;
}

h1 {
  margin: 0 0 22px;
  font-size: 1.9rem;
  letter-spacing: -0.03em;
}

.header-logo {
  text-align: center;
  margin-bottom: 20px;
}

.logo {
  max-width: 190px;
  height: auto;
  border-radius: 8px;
}

label {
  display: block;
  margin-top: 16px;
  margin-bottom: 8px;
  font-size: 0.95rem;
  color: #cbd5e1;
}

input,
select {
  width: 100%;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid rgba(148, 163, 184, 0.25);
  background: rgba(255, 255, 255, 0.06);
  color: #f8fafc;
  font-size: 1rem;
}

select {
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23cbd5e1' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  background-size: 14px 14px;
}

select::-ms-expand {
  display: none;
}

button {
  width: 100%;
  margin-top: 24px;
  padding: 14px 16px;
  border: none;
  border-radius: 12px;
  background: #2563eb;
  color: #fff;
  font-size: 1rem;
  cursor: pointer;
  transition: background 0.2s ease;
}

button:hover {
  background: #1d4ed8;
}

.note {
  margin: 18px 0 0;
  font-size: 0.95rem;
  color: #94a3b8;
}

.note a {
  color: #93c5fd;
  text-decoration: none;
}

.message {
  margin-top: 18px;
  font-size: 0.95rem;
}

.message.error {
  color: #fca5a5;
}

.message.success {
  color: #86efac;
}

.version {
  margin-top: 20px;
  font-size: 0.8rem;
  color: #64748b;
  text-align: center;
}

.dashboard-content {
  display: grid;
  gap: 14px;
}

.dashboard-content p {
  margin: 0;
  font-size: 1rem;
}