body {
  font-family: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  background: linear-gradient(180deg, #f8fafc 0%, #eef2ff 100%);
  color: #0f172a;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0;
}

* { box-sizing: border-box; }

.login-container { width: 100%; max-width: 420px; padding: 24px; }

.login-header { text-align: center; margin-bottom: 18px; }

.login-logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 800;
  color: #1d4ed8;
  margin-bottom: 6px;
}

.login-subtitle { color: #64748b; font-size: 13px; }

.login-card {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 16px;
  padding: 18px;
  box-shadow: 0 1px 2px rgba(2, 6, 23, 0.06), 0 10px 30px rgba(2, 6, 23, 0.08);
}

.form-group { margin-bottom: 14px; }

.form-label { display: block; font-size: 12px; font-weight: 700; margin-bottom: 6px; color: #334155; }

.form-input {
  width: 100%;
  padding: 10px 12px;
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 10px;
  color: #0f172a;
  font-size: 14px;
}

.form-input:focus {
  outline: none;
  border-color: rgba(37, 99, 235, 0.45);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12);
}

.btn {
  width: 100%;
  padding: 10px 12px;
  background: #2563eb;
  color: white;
  border: 1px solid #2563eb;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.15s ease, transform 0.08s ease;
}

.btn:hover { background: #1d4ed8; }
.btn:active { transform: translateY(1px); }

.flash {
  padding: 12px 14px;
  border-radius: 12px;
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 10px;
  border: 1px solid #e2e8f0;
  background: #ffffff;
}

.flash-error { border-color: rgba(220, 38, 38, 0.25); background: rgba(220, 38, 38, 0.08); color: #991b1b; }
.flash-info { border-color: rgba(37, 99, 235, 0.25); background: rgba(37, 99, 235, 0.08); color: #1e3a8a; }